Attachment 0003 9310339 REV AB 81MM DRAWING.pdf
PDF 238 KB Posted
- Attached to
- Obturating Rings (60MM, 81MM, & 120MM) Federal contract opportunity
- Solicitation number
- W519TC-25-R-2003
About this file
This document is a technical drawing for an 81mm Obturating Ring, Revision AB, dated July 24, 2020. It provides detailed specifications and manufacturing requirements for this component, which is used in various 81mm mortar systems. The drawing includes information on the applicable military and industry standards, material composition and properties, molding and heat treatment processes, dimensional tolerances, and quality control criteria. The drawing is referenced in a federal contract opportunity for Obturating Rings in 60mm, 81mm, and 120mm sizes, solicitation number W519TC-25-R-2003, issued by the Department of the Army Materiel Command Contracting Command Rock Island Arsenal. The contract is for the procurement of these rings to support the M930, M983, M929, and M819 mortar systems.
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| B08 - Solicitation - W519TC25R2003 P00002.pdf | ||
| B08 - Solicitation - W519TC25R2003 P00001.pdf | ||
| B08 - W519TC-25-R-2003_Obturating Rings_Solicitation.pdf | ||
| B08 - Attachment 0001_Drawing Request Instructions.pdf | ||
| B08 - Attachment 0001_Drawing Request Instructions.pdf | ||
| B08 - W519TC-25-R-2003_Obturating Rings_Solicitation.pdf | ||
| Attachment 0002 13005177 REV G 60MM DRAWING.pdf | ||
| Attachment 0004 12977454 REV K 120MM DRAWING.pdf |
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Text version
D
C
B
A
D
C
B
A
8 7 6 5 4 3 12
DESIGN ACTIVITY
SIZE CAGE CODE
SCALE UNIT WT.
DRAWN BY DATE(YEAR-MO-DA)
CHECKER ENGINEER
ENGINEER QUALITY ENGINEER
DRAWING APPROVAL
DESIGN APPROVALMATL ENGR MODELED BY
CONTRACT NUMBER
CONTRACTOR
SHEET
DRAWING SIZE D
TOLERANCES ON ANGLES �#� �$�
2 PLACE DECIMALS �#�
3 PLACE DECIMALS �#�
FORMAT: D_TACOM_ENG_1_0 12345678
DWG NO.
B
B
45�$� +5�$� -0�$�
45�$� +5�$� -0�$�
.02 MAX
16 17
.20 +.00 -.02
.12 +.00 -.01
NOTE 15
3.040 +.000 -.005
2X.074 +.000 -.002
2X .125 +.005 -.000
2X.082�#�.002
THICKNESS AT ENDS
2X.035 +.000 -.015
2 X
120�$�
M821A413064709
KMC2014-02-25NOR R14J2003 / 2014-02-06Y
BAC2018-11-06NOR R18J2024 / 2018-10-17AA
NASNOR R20J2001 / 2020-04-10
FOUO / FOIA, EXEMPTION III
1 OF 1 1/1
931033919200D
RING, OBTURATING
US ARMY
ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER
PICATINNY ARSENAL, NEW JERSEY 07806-5000
2010-04-19JOHN B NILES
2010-04-09STEPHEN HARNETT
M. POLINSKI
R. AREVALON. BALDWIN
1984-12-14N. BALDWIN
APPLICATION
USED ONNEXT ASSY
M821A212977143
M889A213013653
M81612953388
M889A112630672
M821A112630535
M8199327838
M853A19381093
M8799310341
M821A313028727
M889A413029016
M889A313029017
PMIC
MECHANICAL
PROPERTIES
YP
TS
EL2
RA
BH
RH N.BALDWIN
THIRD ANGLE PROJECTION
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
DO NOT SCALE DRAWING
PART NO. 9310339
THIS DRAWING WAS GENERATED FROM A SOLID MODEL
AND IS CAD MAINTAINED. CHANGES SHALL BE
INCORPORATED BY THE DESIGN ACTIVITY.
NSN
REVISIONS
APPROVEDDATE(YEAR-MO-DA)DESCRIPTIONDRAW REV
AMW2010-05-07
REDRAWN WITH CHANGES
NOR R09J2022 / 2010-04-19
U
BAC2013-04-01NOR R12J2026 / 2013-03-20V
BMG2013-09-05NOR R13J2007 / 2013-08-28W
2020-07-24AB
NOTES:
1- SPECS MIL-A-2550, MIL-DTL-70548, ANSI Y14.5M-1982, ASME Y14.100 AND ASME-B46.1 APPLY.
2- MATERIAL: POLYCARBONATE (PC0110B9980) PER ASTM D3935-94, COLOR GREEN (NO.14260, 14223 OR 14187 ACCEPTABLE) PER AMS-STD-595. NO SCRAP OR REGRIND ALLOWED.
3- THE MOLDING PELLETS SHALL MEET THE MECHANICAL PROPERTIES AS PER THE ASTM-D3935-87 WITH THE FOLLOWING ADDITIONS:
A-TENSILE STRENGTH YIELD: 57MPA MIN
B-FLEXURAL MODULUS: 2000MPA MIN
C- MELT FLOW RATE: 3.0-9.0g/10 MIN 4- MELT FLOW RATE OF THE DRY OBTURATOR SHALL NOT BE GREATER THAN A 60% INCREASE OF THE FEED PELLETS. THE TEST SHALL BE CONDUCTED IAW ASTM D1238.
5- MOLDING PELLETS SHOULD BE DRYED. ALLOWABLE MOISTURE FOR THE MOLDING PELLETS SHALL NOT BE GREATER THAN .02% OF WEIGHT.
6- AFTER MOLDING, OBTURATOR MUST BE PUT IN AN AIR CIRCULATING OVEN AT 110�$�C (230�$�F) TO 130�$�C (266�$�F) FOR 4 HR TO 24 HR ON A FLAT SURFACE.
7- OBTURATOR MUST BE REMOVED AFTER HEAT TREATMENT AND ALLOWED TO COOL AT ROOM TEMPERATURE. OBTURATOR MUST REMAIN FLAT AT ALL TIMES DURING HEAT TREATMENT AND COOLING.
8- ALL DIMENSIONS AND GAGING REQUIREMENTS APPLY AFTER HEAT TREATMENT.
9- MOLDINGS SHALL BE FREE FROM VOIDS AND SURFACE SPLAY.
10- COMPOSITION OF COLORING MATERIAL SHALL BE SUFFICIENTLY TRANSLUCENT TO INSPECT FOR ABSENCE OF VOIDS.
11- ALL EDGES TO HAVE .01R MAX.
12- ALL EXCESS MATERIAL IN THE SCREW/GATE AREA SHALL BE REMOVED TO GIVE A FLUSH SURFACE.
13- REMOVE ALL MOLDING FLASH.
14- FINISH ALL OVER.
15 - OBTURATOR SHALL BE PLACED ON A 2.920�n� PLUG AND A RING GAGE OF 3.165�n� MUST FALL FREELY OVER THE O.D. OF THE PART.
16 - APPLIES WHEN PART IS PLACED ON A 2.911�n�PLUG.
17 - OFFSET BETWEEN HOLE CENTERS.
DISTRIBUTION STATEMENT D.
DISTRIBUTION AUTHORIZED TO DEPARTMENT OF DEFENSE AND U.S. DOD CONTRACTORS ONLY; ADMINISTRATIVE OR OPERATIONAL USE, SPECIFIC AUTHORITY, VULNERABILITY INFORMATION, AND CRITICAL TECHNOLOGY; 27 JULY 2017. OTHER REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED TO CAD DIVISION, PM CAS, ATTN: SFAE-AA-CAS, B-162 NORTH, PICATINNY ARSENAL, NJ 07806-5000.
SEE DETAIL C
SECTION A-A DENOTES SPLIT
FULL DEPTH
DETAIL C
SCALE 4/1
VIEW B-B
| Sheet 1 |
| Views |
| new_view_1 |
| A |
| top_6 |
| C |
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