The Washer,recessed, cataloged under National Stock Number 5310-01-076-0361, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is West Coast Lockwasher Co., Inc. Dba West Coast Lockwasher Co Inc Div West Coast Lockwasher. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-076-0361 |
| Primary Part Number | BACW10CT16C |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | West Coast Lockwasher Co., Inc. Dba West Coast Lockwasher Co Inc Div West Coast Lockwasher |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | RECESSED |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN |
| Material Thickness | 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN |
| Specification/standard Data | 81205-BACW10CT MANUFACTURERS STANDARD |
| Recess Diameter | 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Hole Diameter | 0.503 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN |
| Recess Angle | 80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM |
| 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 |
|---|---|
| BACW10CT16C PRIMARY | West Coast Lockwasher Co., Inc. Dba West Coast Lockwasher Co Inc Div West Coast Lockwasher (USA) |
| BACW10CT16C PRIMARY | Moeller Manufacturing & Supply, Llc (USA) |
| BACW10CT16C PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACW10CT16C PRIMARY | Anillo Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| BACW10CT16C | 7/2 Vendor item drawing reference U.S. Government activity |
| BACW10CT16C | 5/9 Secondary reference Mamco Mfg Co Inc |
NSN 5310-01-076-0361 is a Washer,recessed, manufactured by West Coast Lockwasher Co., Inc. Dba West Coast Lockwasher Co Inc Div West Coast Lockwasher, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-076-0361 has 4 manufacturer part numbers on file: BACW10CT16C (West Coast Lockwasher Co., Inc. Dba West Coast Lockwasher Co Inc Div West Coast Lockwasher), BACW10CT16C (Moeller Manufacturing & Supply, Llc), BACW10CT16C (Sps Technologies, Llc Dba PB Fasteners), BACW10CT16C (Anillo Industries Llc).
Key specifications for BACW10CT16C: Surface Treatment Document and Classification: QQ-P-416,TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: RECESSED; Material Document and Classification: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN. 11 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.