The Washer,lock, cataloged under National Stock Number 5310-01-318-8145, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-318-8145 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-P-16232,TYPE Z,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 43.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | AISI/SAE 1060 ASSN STD 1ST MATERIAL RESPONSE OR AISI 1060 ASSN STD 2ND MATERIAL RESPONSE OR AISI 1064 ASSN STD 3RD MATERIAL RESPONSE OR AISI/SAE 1065 ASSN STD 4TH MATERIAL RESPONSE OR AISI/SAE 1070 ASSN STD 5TH MATERIAL RESPONSE OR AISI/SAE 1074 ASSN STD 6TH MATERIAL RESPONSE OR AISI 1075 ASSN STD 7TH MATERIAL RESPONSE OR AISI 1080 ASSN STD 8TH MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.135 INCHES MAXIMUM IN |
| Material Thickness | 0.020 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.088 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 |
| Reference | Meaning |
|---|---|
| MS51848-23 | 2/2 Government specification standardization U.S. Government activity |
NSN 5310-01-318-8145 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-318-8145: Surface Treatment Document and Classification: MIL-P-16232,TYPE Z,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 43.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: AISI/SAE 1060 ASSN STD 1ST MATERIAL RESPONSE OR AISI 1060 ASSN STD 2ND MATERIAL RESPONSE OR AISI 1064 ASSN STD 3RD MATERIAL RESPONSE OR AISI/SAE 1065 ASSN STD 4TH MATERIAL RESPONSE OR AISI/SAE 1070 ASSN STD 5TH MATERIAL RESPONSE OR AISI/SAE 1074 ASSN STD 6TH MATERIAL RESPONSE OR AISI 1075 ASSN STD 7TH MATERIAL RESPONSE OR AISI 1080 ASSN STD 8TH MATERIAL RESPONSE 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.