House Assembly Changes.pdf
PDF 70 KB Posted
- Attached to
- VLS RUGGEDIZED DESIGN SWITCH
- Solicitation number
- SPMYM326Q6073
About this file
This file contains engineering drawing change directives for PC 3 (Housing Assembly) across three related drawings: SH 3 of 6557926D, SH 2 of 6557947D, and SH 3 of 6557925D. The changes are primarily dimensional and geometric tolerance modifications affecting a receptacle assembly component. Key modifications include: deletion of a 1.90 reference dimension in Zone F6; replacement of a 1.25 dimension with 0.756 +/- 0.030 with adjusted measurement points; removal of Datum C from multiple True Position callouts; deletion of parallelism and perpendicularity tolerances; replacement of 2x 1.90 dimensions with 2x 1.406 +/- 0.030; deletion of 1.125 and 1.625 basic dimensions; and tolerance tightening of 2.417 from +/- 0.010 to +/- 0.030. Measurement points are being relocated from the back of receptacle threads to the step in the receptacle body throughout the drawings.
The changes systematically reduce geometric complexity by eliminating certain datum references (particularly Datum C and Datum J) and associated positional and parallelism constraints. The revision standardizes dimensional tolerances across multiple receptacle thread features and clarifies measurement datum locations to reference the receptacle body step rather than the thread back. These modifications appear to be engineering refinements to improve manufacturability and inspection consistency across the housing assembly design without altering the fundamental form or primary functional dimensions.
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Other files
| File | Type | Posted |
|---|---|---|
| 26Q6073 RFQ Required.docx | DOCX document | |
| Clauses - Full Text Provisions and Clauses 260210.docx | DOCX document |
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Text version
All changes are to PC 3 (Housing Assembly) on SH 3 of 6557926D
1. Zone F6: Delete (1.90) Reference dimension
2. Zone F6: Update 1.25 dimension to 0.756 +/- 0.030 and move the bottom measurement point for the dimension upward from the back of receptacle threads to the step in the receptacle body
3. Zone F3: Delete Datum C from True Position callout for the 0.0623/0.0625 holes
4. Zone E3: Delete True Position of 0.030 to Datums A/B/D for the receptacle threads
5. Zone B5: Replace 2x 1.90 dimension with 2x 1.406 +/- 0.030 and move top measurement point for the dimension downward from back of receptacle threads (Datum C) to the step in the receptacle body (located between current Datum C and the weld between the receptacle and the frame).
6. Zone B5: Delete 0.020 parallelism to Datum C
7. Zone A5: Delete True Position of 0.060 to Datum D/C/E and 0.005 to Datum D
8. Zone A4: Delete 1.125 basic dimension
9. Zone B4: Delete 1.625 basic dimension
10. Zone B3: Delete Datum C
All changes are to PC 3 (Housing Assembly) on SH 2 of 6557947D (note it may be sheet 3, our copy is illegible for the drawing page numbers and SH 2 and 3 may be switched in our electronic copy, the dimensions we are changing are similar to those on Sh 3 of 6557925 and 6557926)
1. Zone F6: Delete (1.90) Reference dimension
2. Zone F6: Update 1.25 dimension to 0.756 +/- 0.030 and move the bottom measurement point for the dimension upward from the back of receptacle threads to the step in the receptacle body
3. Zone F3: Delete Datum C from True Position callout of 0.002 to Datums D/B/C
4. Zone E3: Delete True Position of 0.030 to Datums A/B/D for the receptacle threads
5. Zone B5: Replace 2x 1.90 dimension with 2x 1.406 +/- 0.030 and move top measurement point for the dimension downward from back of receptacle threads (Datum C) to the step in the receptacle body (located between current Datum C and the weld between the receptacle and the frame).
6. Zone B5: Delete 0.020 parallelism to Datum C
7. Zone A5: Delete True Position of 0.060 to Datum D/C/E and 0.005 to Datum D
8. Zone B3: Delete 1.125 basic dimension
9. Zone B4: Delete 1.625 basic dimension
10. Zone B3: Delete Datum C
All changes are to PC 3 (Housing Assembly) on SH 3 of 6557925D
1. Zone E8: Delete True Position of 0.060 to Datum B/H/J and 0.005 to Datum B
2. Zone F7: Delete 1.500 basic dimension
3. Zone F7: Delete 1.125 basic dimension
4. Zone F6: Change 2.417 +/- 0.010 to 2.417 +/- 0.030
5. Zone G5: Delete perpendicularity of 0.010 to Datum J
6. Zone F5: Delete True Position of 0.005 to Datum J/B
7. Zone F4: Delete 2.542 dimension
8. Zone F4: Replace 1.25 dimension with 0.756 +/- 0.030 and move the top measurement point upward from the back of the receptacle threads to the step in the receptacle body.
9. Zone E4: Delete Datum J
10. Zone E4: Delete True Position of 0.030 to Datums A/B/C for the receptacle threads
File details come from the government source that posted it. Updated .