The Washer,recessed, cataloged under National Stock Number 5310-00-906-9540, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Gardner Denver Nash Llc Dba Gardner Denver Engineered Products Group Div Gardner Denver Nash. Government technical data includes 10 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. 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 | 5310-00-906-9540 |
| Primary Part Number | 61-1741 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Gardner Denver Nash Llc Dba Gardner Denver Engineered Products Group Div Gardner Denver Nash |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES INNER |
| Surface Finish | 32.0 MICROINCHES SHOULDER FACE |
| Style Designator | RECESSED |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.437 INCHES NOMINAL IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| Recess Diameter | 0.210 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN |
| Material | STEEL COMP 303 OVERALL |
| Hole Diameter | 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 61-1741 PRIMARY | Gardner Denver Nash Llc Dba Gardner Denver Engineered Products Group Div Gardner Denver Nash (USA) |
NSN 5310-00-906-9540 is a Washer,recessed, manufactured by Gardner Denver Nash Llc Dba Gardner Denver Engineered Products Group Div Gardner Denver Nash, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-906-9540 has 1 manufacturer part number on file: 61-1741 (Gardner Denver Nash Llc Dba Gardner Denver Engineered Products Group Div Gardner Denver Nash).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-007-1986. Verify interchangeability with system specifications before substitution.
Key specifications for 61-1741: Surface Finish: 32.0 MICROINCHES INNER; Surface Finish: 32.0 MICROINCHES SHOULDER FACE; Style Designator: RECESSED; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL. 10 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.