The Washer,lock, cataloged under National Stock Number 5310-00-013-8528, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Chrysler Realty Company Llc Dba Daimler Chrysler. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-013-8528 |
| Primary Part Number | 138528 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Chrysler Realty Company Llc Dba Daimler Chrysler |
| Status | ACTIVE |
| Style Designator | FLAT INTERNAL TEETH |
| Material Document and Classification | QQ-S-633,FS 1060 TO FS 1080 CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN |
| Material Thickness | 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | A TYPE |
| Surface Treatment | PHOSPHATE OVERALL |
| Material | STEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL |
| Hole Diameter | 0.141 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 |
| Part Number | Manufacturer |
|---|---|
| 138528 PRIMARY | Chrysler Realty Company Llc Dba Daimler Chrysler (USA) |
| Reference | Meaning |
|---|---|
| MILW6986TYPEA | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-013-8528 is a Washer,lock, manufactured by Chrysler Realty Company Llc Dba Daimler Chrysler, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-013-8528 has 1 manufacturer part number on file: 138528 (Chrysler Realty Company Llc Dba Daimler Chrysler).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-221-7495. Verify interchangeability with system specifications before substitution.
Key specifications for 138528: Style Designator: FLAT INTERNAL TEETH; Material Document and Classification: QQ-S-633,FS 1060 TO FS 1080 CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN; Material Thickness: 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN. 8 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.