The Washer,flat, cataloged under National Stock Number 5310-01-280-5792, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Boeing Defence Australia Ltd Div Defense, Space & Security. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-280-5792 |
| Primary Part Number | BACW10BP5DP |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Boeing Defence Australia Ltd Div Defense, Space & Security |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.585 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | IRON ALLOY 660 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.313 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN |
| Thickness | 0.057 INCHES MINIMUM AND 0.069 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 |
|---|---|
| BACW10BP5DP | Boeing Defence Australia Ltd Div Defense, Space & Security (AUS) |
| NTA11551-5DP | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA) |
| BACW10BP5DP | Boeing Defence Australia Ltd (AUS) |
| Reference | Meaning |
|---|---|
| BACW10BN5SP | 5/9 Secondary reference U.S. Government activity |
| BACW10BP5DP | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-280-5792 is a Washer,flat, manufactured by Boeing Defence Australia Ltd Div Defense, Space & Security, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-280-5792 has 3 manufacturer part numbers on file: BACW10BP5DP (Boeing Defence Australia Ltd Div Defense, Space & Security), NTA11551-5DP (Leonardo Spa Aeronautics Division - Pomigliano D'arco Site), BACW10BP5DP (Boeing Defence Australia Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-669-7041. Verify interchangeability with system specifications before substitution.
Key specifications for BACW10BP5DP: Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.585 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN; Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM; Material Document and Classification: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 12 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.