The Washer,flat, cataloged under National Stock Number 5310-00-352-6339, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fwd Seagrave Holdings Lp. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5310-00-352-6339 |
| Primary Part Number | 122072 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fwd Seagrave Holdings Lp |
| Status | ACTIVE |
| Overall Diameter | 2.360 INCHES MINIMUM AND 2.400 INCHES MAXIMUM IN |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 4130 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.260 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN |
| Thickness | 0.110 INCHES MINIMUM AND 0.150 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 |
NSN 5310-00-352-6339 is a Washer,flat, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-352-6339 has 2 manufacturer part numbers on file: 122072 (Fwd Seagrave Holdings Lp), 31174 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-609-1395. Verify interchangeability with system specifications before substitution.
Key specifications for 122072: Overall Diameter: 2.360 INCHES MINIMUM AND 2.400 INCHES MAXIMUM IN; Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 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.