The Washer,flat, cataloged under National Stock Number 5310-01-204-3344, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Aero-Plastics, Inc.. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-204-3344 |
| Primary Part Number | 4M116-04004 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Aero-Plastics, Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.740 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN |
| Material Document and Classification | OAK -651/3-31,FSCM 07512 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC TETRAFLUOROETHYLENE OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN |
| Thickness | 0.031 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 |
|---|---|
| 4M116-04004 PRIMARY | Aero-Plastics, Inc. (USA) |
| 4M116-04004 PRIMARY | Indiana Aircraft Hardware, Inc. (USA) |
| 4M116-04004 PRIMARY | Anillo Industries Llc (USA) |
| 4M116-04004 PRIMARY | The Boeing Company Div Defense (USA) |
| 5934187 | Am General Llc (USA) |
| 4M116-04004 | Moeller Manufacturing & Supply, Llc (USA) |
| 4M116-04004 PRIMARY | Plastifab, Inc. Dba Plastifab Leed Plastics Div Plasifab Inc. (USA) |
| 4M116-04004 | K & L Precision Plastics Inc Div K & L Prescison Plastics, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5610-157-31 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 4M116-04004 | 5/9 Secondary reference Jetron Inc |
| 10110150 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 4M116-04004 | 5/9 Secondary reference Plastifab Incorporated |
NSN 5310-01-204-3344 is a Washer,flat, manufactured by Aero-Plastics, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-204-3344 has 8 manufacturer part numbers on file: 4M116-04004 (Aero-Plastics, Inc.), 4M116-04004 (Indiana Aircraft Hardware, Inc.), 4M116-04004 (Anillo Industries Llc), 4M116-04004 (The Boeing Company Div Defense), 5934187 (Am General Llc) and 3 more.
Key specifications for 4M116-04004: Overall Diameter: 0.740 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN; Material Document and Classification: OAK -651/3-31,FSCM 07512 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.