The Washer,recessed, cataloged under National Stock Number 5310-01-068-1328, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div Cylinder Division. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5310-01-068-1328 |
| Primary Part Number | AC1669 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Parker Hannifin Corporation Div Cylinder Division |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | 391 3383 020 FSCM 13829 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.620 INCHES NOMINAL IN |
| Recess Depth | 0.047 INCHES NOMINAL IN |
| Recess Diameter | 2.000 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.510 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-068-1328 is a Washer,recessed, manufactured by Parker Hannifin Corporation Div Cylinder Division, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-068-1328 has 2 manufacturer part numbers on file: AC1669 (Parker Hannifin Corporation Div Cylinder Division), S94908 (Cnh Industrial America Llc Dba Cnh America).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-633-7634. Verify interchangeability with system specifications before substitution.
Key specifications for AC1669: Overall Height: 0.140 INCHES NOMINAL IN; Style Designator: RECESSED; Material Document and Classification: 391 3383 020 FSCM 13829 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 2.620 INCHES NOMINAL 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.