The Washer,lock, cataloged under National Stock Number 5310-00-209-3869, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Superior Electric Holding Group Llc Div Specialty Product Technologies. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-209-3869 |
| Primary Part Number | 820601G1A1 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Superior Electric Holding Group Llc Div Specialty Product Technologies |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.325 INCHES MINIMUM AND 0.336 INCHES MAXIMUM IN |
| Material Thickness | 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN |
| Departure From Cited Designator | AS MODIFIED BY SURFACE TREATMENT |
| Surface Treatment | CADMIUM OVERALL |
| Hole Diameter | 0.168 INCHES MINIMUM AND 0.176 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 |
|---|---|
| 820601G1A1 PRIMARY | Superior Electric Holding Group Llc Div Specialty Product Technologies (USA) |
| Reference | Meaning |
|---|---|
| MILW6986TYPEAN936A8 | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-209-3869 is a Washer,lock, manufactured by Superior Electric Holding Group Llc Div Specialty Product Technologies, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-209-3869 has 1 manufacturer part number on file: 820601G1A1 (Superior Electric Holding Group Llc Div Specialty Product Technologies).
Key specifications for 820601G1A1: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.325 INCHES MINIMUM AND 0.336 INCHES MAXIMUM IN; Material Thickness: 0.018 INCHES MINIMUM AND 0.022 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.