The Washer,flat, cataloged under National Stock Number 5310-00-285-8833, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-285-8833 |
| Primary Part Number | 538174 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BOTTOM |
| Surface Finish | 63.0 MICROINCHES TOP |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 1,CLASS1 OR 2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-685-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 4130 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.708 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN |
| Thickness | 0.125 INCHES NOMINAL 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 |
|---|---|
| 538174 PRIMARY | Goodrich Corporation (USA) |
| 538174 | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| 538174 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
| 10398526 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-00-285-8833 is a Washer,flat, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-285-8833 has 2 manufacturer part numbers on file: 538174 (Goodrich Corporation), 538174 (Cm Manufacturing Inc Dba Cm Manufacturing Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-854-7076. Verify interchangeability with system specifications before substitution.
Key specifications for 538174: Surface Finish: 63.0 MICROINCHES BOTTOM; Surface Finish: 63.0 MICROINCHES TOP; Surface Treatment Document and Classification: QQ-P-416,TYPE 1,CLASS1 OR 2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN. 13 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.