The Washer,key, cataloged under National Stock Number 5310-00-262-8299, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-262-8299 |
| Primary Part Number | A3113 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. |
| Status | ACTIVE |
| Internal Straight Key Width | 0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 1.0625 INCHES NOMINAL1.0625 INCHES NOMINAL IN |
| Style Designator | KEYKEY |
| Outside Diameter | 3.250 INCHES NOMINAL3.250 INCHES NOMINAL IN |
| Material Thickness | 0.059 INCHES NOMINAL0.059 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Internal Key Quantity | 33 |
| Hole Diameter | 1.875 INCHES NOMINAL1.875 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 |
| Part Number | Manufacturer |
|---|---|
| A3113 PRIMARY | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
| Reference | Meaning |
|---|---|
| 472826 | 5/9 Secondary reference Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co |
| A3113 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-262-8299 is a Washer,key, manufactured by Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-262-8299 has 1 manufacturer part number on file: A3113 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).
3 possible matches (shared part number, not a government interchangeability claim): 4720-00-541-7117, 5330-01-331-8556, 5905-01-514-4828. Verify interchangeability with system specifications before substitution.
Key specifications for A3113: Internal Straight Key Width: 0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 1.0625 INCHES NOMINAL1.0625 INCHES NOMINAL IN; Style Designator: KEYKEY; Outside Diameter: 3.250 INCHES NOMINAL3.250 INCHES NOMINAL IN. 8 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.