The Washer,split, cataloged under National Stock Number 5310-01-188-1573, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Tactair Fluid Controls Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Washer,split |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Tactair Fluid Controls Inc (CAGE 70236) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-188-1573 |
| Primary Part Number | 3-1091 |
| Item Name | Washer,split |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 3-1091 PRIMARY | Tactair Fluid Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 3-1091 | 5/9 Secondary reference Tactair Fluid Controls Inc Phoenix Controls Div |
| 3-1091 | 5/9 Secondary reference Tactair Fluid Controls Inc Western Hydraulics Div |
| 3-1091 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-188-1573 is a Washer,split, manufactured by Tactair Fluid Controls Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-188-1573 has 1 manufacturer part number on file: 3-1091 (Tactair Fluid Controls Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-407-1081, 5940-01-408-7751. Verify interchangeability with system specifications before substitution.
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.