The Washer,recessed, cataloged under National Stock Number 5310-00-769-4646, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Enjet Aero Manchester Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-769-4646 |
| Primary Part Number | 385287 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Enjet Aero Manchester Llc |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | AMS 5040 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5042 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.450 INCHES MINIMUM AND 1.460 INCHES MAXIMUM IN |
| Recess Depth | 0.175 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.040 INCHES MINIMUM AND 1.060 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 | F |
| Part Number | Manufacturer |
|---|---|
| 385287 PRIMARY | Enjet Aero Manchester Llc (USA) |
| 385287 | Alinabal Holdings Corporation Div Engineered Products Group (USA) |
| 385287 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 385287 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 5310-00-769-4646 is a Washer,recessed, manufactured by Enjet Aero Manchester Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-769-4646 has 3 manufacturer part numbers on file: 385287 (Enjet Aero Manchester Llc), 385287 (Alinabal Holdings Corporation Div Engineered Products Group), 385287 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 5330-00-774-4577. Verify interchangeability with system specifications before substitution.
Key specifications for 385287: Overall Height: 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Style Designator: RECESSED; Material Document and Classification: AMS 5040 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5042 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.450 INCHES MINIMUM AND 1.460 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.