The Washer,lock, cataloged under National Stock Number 5310-00-013-8510, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-013-8510 |
| Primary Part Number | 138510 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Style Designator | FLAT EXTERNAL TEETH |
| Material Document and Classification | ASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN |
| Material Thickness | 0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | B TYPE |
| Material | STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL |
| Hole Diameter | 0.897 INCHES MINIMUM AND 0.927 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 |
|---|---|
| 138510 | General Motors Llc Dba General Motors Llc (USA) |
| P1437 | Fmc Corp (USA) |
| PE101 | Wisconsin Motors, Llc (USA) |
| 138510 | Abm Equipment, Llc (USA) |
| P1437 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 138510 | 5/9 Secondary reference General Motors Corp |
| MILW6986TYPEB | 4/1 Identification reference U.S. Government activity |
| P1437 | 3/2 Design control — primary reference U.S. Government activity |
| 61913D | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 61913D | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-013-8510 is a Washer,lock, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-013-8510 has 5 manufacturer part numbers on file: 138510 (General Motors Llc Dba General Motors Llc), P1437 (Fmc Corp), PE101 (Wisconsin Motors, Llc), 138510 (Abm Equipment, Llc), P1437 (Amz Alabama Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 4820-00-383-4333, 5999-01-012-7313, 6685-01-182-2633. Verify interchangeability with system specifications before substitution.
Key specifications for 138510: Style Designator: FLAT EXTERNAL TEETH; Material Document and Classification: ASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL; Outside Diameter: 1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN; Material Thickness: 0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN. 7 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.