The Washer,flat, cataloged under National Stock Number 5310-01-053-1003, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hansome Energy Systems Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-053-1003 |
| Primary Part Number | HAN239-1-12 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hansome Energy Systems Inc |
| Status | ACTIVE |
| Overall Diameter | 2.990 INCHES MINIMUM AND 3.010 INCHES MAXIMUM IN |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 2.168 INCHES MINIMUM AND 2.173 INCHES MAXIMUM IN |
| Thickness | 0.120 INCHES MINIMUM AND 0.125 INCHES MAXIMUM 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 |
|---|---|
| HAN239-1-12 PRIMARY | Hansome Energy Systems Inc (USA) |
| A365-10PC47 | Hansome Energy Systems Inc (USA) |
NSN 5310-01-053-1003 is a Washer,flat, manufactured by Hansome Energy Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-053-1003 has 2 manufacturer part numbers on file: HAN239-1-12 (Hansome Energy Systems Inc), A365-10PC47 (Hansome Energy Systems Inc).
Key specifications for HAN239-1-12: Overall Diameter: 2.990 INCHES MINIMUM AND 3.010 INCHES MAXIMUM IN; Material Document and Classification: AISI ASSN STD ALL MATERIAL RESPONSES OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.