The Washer,flat, cataloged under National Stock Number 5310-01-733-5653, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is International Organization for Standardization (iso). Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-733-5653 |
| Primary Part Number | ISO7089-10-300HV ZNNI8/CN/T2 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ISO 4042 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 19.48 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 300.0 VICKERS NOMINAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | I9008-ISO 7089 INTERNATIONAL STD/SPEC |
| Surface Treatment | ZINC NICKEL OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 10.50 MILLIMETERS MINIMUM AND 10.77 MILLIMETERS MAXIMUM MM |
| Thickness | 1.80 MILLIMETERS MINIMUM AND 2.20 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| ISO7089-10-300HV ZNNI8/CN/T2 PRIMARY | International Organization for Standardization (iso) (CHE) |
| Reference | Meaning |
|---|---|
| ISO7089 | 3/1 Design control — primary reference International Organization for Standardization (iso) |
NSN 5310-01-733-5653 is a Washer,flat, manufactured by International Organization for Standardization (iso), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-733-5653 has 1 manufacturer part number on file: ISO7089-10-300HV ZNNI8/CN/T2 (International Organization for Standardization (iso)).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-735-6598, 5310-01-735-7431. Verify interchangeability with system specifications before substitution.
Key specifications for ISO7089-10-300HV ZNNI8/CN/T2: Surface Treatment Document and Classification: ISO 4042 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 19.48 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM MM; Hardness Rating: 300.0 VICKERS NOMINAL; Cross-Sectional Shape Style: RECTANGULAR. 11 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.