The Washer,key and Recessed, cataloged under National Stock Number 5310-00-918-5658, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-918-5658 |
| Primary Part Number | 522747 |
| Item Name | Washer,key and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,AMS 6350 OR 6355,1.955 MIN IN. 1.975 MAX IN. OD,1.270 MIN IN. 1.290 MAX IN. ID |
| 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 |
|---|---|
| 522747 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 522747 | 5/9 Secondary reference Gould E a and Co |
| 522747 | C/1 Advisory reference — outside the item-of-supply concept Paradigm Manchester Inc. Dba Pursuit Aerospace |
| 522747 | 5/9 Secondary reference Dynamic Gunver Technologies Llc |
NSN 5310-00-918-5658 is a Washer,key and Recessed, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-918-5658 has 1 manufacturer part number on file: 522747 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-945-6335. Verify interchangeability with system specifications before substitution.
Key specifications for 522747: General Characteristics Item Description: STEEL,AMS 6350 OR 6355,1.955 MIN IN. 1.975 MAX IN. OD,1.270 MIN IN. 1.290 MAX IN. ID. 1 specification is 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.