The Washer,flat, cataloged under National Stock Number 5310-01-034-2838, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-034-2838 |
| Primary Part Number | 50797 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E 300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.438 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 303 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.280 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN |
| Thickness | 0.092 INCHES MINIMUM AND 0.094 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 |
|---|---|
| 50797 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 887F05048 ITEM 10 | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 887B050797 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 887B050797 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 5310-01-034-2838 is a Washer,flat, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-034-2838 has 2 manufacturer part numbers on file: 50797 (L3 Technologies, Inc. Div L3 Keo), 887F05048 ITEM 10 (L3 Technologies, Inc. Div L3 Keo).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-227-5987. Verify interchangeability with system specifications before substitution.
Key specifications for 50797: Surface Treatment Document and Classification: MIL-F-14072,FINISH E 300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.438 INCHES NOMINAL IN; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.