The Washer,flat, cataloged under National Stock Number 5310-01-233-3937, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Micro Plastics Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-233-3937 |
| Primary Part Number | 16FW004032 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Micro Plastics Inc |
| Status | ACTIVE |
| Overall Diameter | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.100 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Thickness | 0.022 INCHES MINIMUM AND 0.042 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 |
|---|---|
| 16FW004032 | Anixter Components, Division of Anixter Ltd (GBR) |
| FW 4-032 | Anixter Components, Division of Anixter Ltd (GBR) |
| 16FW004032 PRIMARY | Micro Plastics Inc (USA) |
| 16W004032 | Anixter Components, Division of Anixter Ltd (GBR) |
| 991/4/11836/006 | Bae Systems Integrated System Technologies Ltd (GBR) |
| Reference | Meaning |
|---|---|
| FW 4-032 | 5/9 Secondary reference Micro Plastics Inc |
| 991/4/11836/006 | 5/9 Secondary reference G E C Marconi Defence Systems Ltd |
NSN 5310-01-233-3937 is a Washer,flat, manufactured by Micro Plastics Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-233-3937 has 5 manufacturer part numbers on file: 16FW004032 (Anixter Components, Division of Anixter Ltd), FW 4-032 (Anixter Components, Division of Anixter Ltd), 16FW004032 (Micro Plastics Inc), 16W004032 (Anixter Components, Division of Anixter Ltd), 991/4/11836/006 (Bae Systems Integrated System Technologies Ltd).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-532-5287, 5310-01-540-2217. Verify interchangeability with system specifications before substitution.
Key specifications for 16FW004032: Overall Diameter: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: PLASTIC POLYAMIDE NYLON OVERALL. 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.