The Washer,flat, cataloged under National Stock Number 5310-00-708-7845, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lexmark International, Inc. Dba Lexmark. 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. 2 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 | 5310-00-708-7845 |
| Primary Part Number | 1132211 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lexmark International, Inc. Dba Lexmark |
| Status | ACTIVE |
| Overall Diameter | 0.250 INCHES NOMINAL IN |
| Hardness Rating | 60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | NICKEL OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.116 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN |
| Thickness | 0.023 INCHES MINIMUM AND 0.027 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 |
|---|---|
| 1132211 PRIMARY | Lexmark International, Inc. Dba Lexmark (USA) |
NSN 5310-00-708-7845 is a Washer,flat, manufactured by Lexmark International, Inc. Dba Lexmark, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-708-7845 has 1 manufacturer part number on file: 1132211 (Lexmark International, Inc. Dba Lexmark).
2 possible matches (shared part number, not a government interchangeability claim): 5920-01-289-5194, 4220-01-517-8669. Verify interchangeability with system specifications before substitution.
Key specifications for 1132211: Overall Diameter: 0.250 INCHES NOMINAL IN; Hardness Rating: 60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: NICKEL 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.