The Washer,recessed, cataloged under National Stock Number 5310-01-167-8642, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-167-8642 |
| Primary Part Number | 13027283-1 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | MIL-S-5059,CONDITION 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 28.00 MILLIMETERS MINIMUM AND 30.00 MILLIMETERS MAXIMUM MM |
| Material Thickness | 3.00 MILLIMETERS MINIMUM AND 4.50 MILLIMETERS MAXIMUM MM |
| Recess Diameter | 18.00 MILLIMETERS MINIMUM AND 19.00 MILLIMETERS MAXIMUM MM |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 301 OVERALL |
| Hole Diameter | 16.25 MILLIMETERS MINIMUM AND 16.50 MILLIMETERS MAXIMUM MM |
| Recess Angle | 90.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 13027283-1 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 10088102 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 13027283-1 | 5/1 Secondary reference Machine Products Co |
NSN 5310-01-167-8642 is a Washer,recessed, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-167-8642 has 1 manufacturer part number on file: 13027283-1 (Us Army Aviation and Missile Command).
Key specifications for 13027283-1: Style Designator: RECESSED; Material Document and Classification: MIL-S-5059,CONDITION 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 28.00 MILLIMETERS MINIMUM AND 30.00 MILLIMETERS MAXIMUM MM; Material Thickness: 3.00 MILLIMETERS MINIMUM AND 4.50 MILLIMETERS MAXIMUM MM. 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.