The Washer,flat, cataloged under National Stock Number 5310-01-715-9640, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-715-9640 |
| Primary Part Number | BACW10BP-62PTU |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR MS QQ-P-35 TYPE 2 OR 8 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 528 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 631 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.407 INCHES MINIMUM AND 0.418 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BACW10BP-62PTU | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACW10BP62PTU | Component Products Corporation Dba Component Products Corp (USA) |
| BACW10BP-62PTU | Anillo Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| BACW10BP | D/9 Drawing number reference only U.S. Government activity |
| BACW10BP-62PTU | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-715-9640 is a Washer,flat, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-715-9640 has 3 manufacturer part numbers on file: BACW10BP-62PTU (Sps Technologies, Llc Dba PB Fasteners), BACW10BP62PTU (Component Products Corporation Dba Component Products Corp), BACW10BP-62PTU (Anillo Industries Llc).
7 possible matches (shared part number, not a government interchangeability claim): 5310-01-715-9768, 5310-01-724-2998, 5310-01-724-2999. Verify interchangeability with system specifications before substitution.
Key specifications for BACW10BP-62PTU: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR MS QQ-P-35 TYPE 2 OR 8 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: AMS 528 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: PASSIVATE OVERALL. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.