The Washer,flat, cataloged under National Stock Number 5310-01-079-3750, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-079-3750 |
| Primary Part Number | S172SP062D343 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.338 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN |
| Thickness | 0.042 INCHES MINIMUM AND 0.062 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 |
|---|---|
| S172SP062D343 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
NSN 5310-01-079-3750 is a Washer,flat, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-079-3750 has 1 manufacturer part number on file: S172SP062D343 (Bae Systems Information and Electronic Systems Integration Inc.).
Key specifications for S172SP062D343: Overall Diameter: 0.338 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN; Material Document and Classification: ASTM A582 ASSN STD ALL MATERIAL RESPONSES 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.