The Wrench,valve Seat Ring, cataloged under National Stock Number 5120-01-159-3043, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-159-3043 |
| Primary Part Number | 803-4384536-6XXX-53 |
| Item Name | Wrench,valve Seat Ring |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | CARBON STEEL; OCTAGONAL TYPE; FOR 1-1/4 IN. VALVE; 1.276 IN. MALE OCTAGONAL WRENCHING SIZE; 1-27/32 IN. BODY DIA; 1-5/16 IN. MALE SQ DRIVE; 3-11/16 IN. O/A LG 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 |
|---|---|
| 803-4384536-6XXX-53 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5120-01-159-3043 is a Wrench,valve Seat Ring, manufactured by Naval Sea Systems Command, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-159-3043 has 1 manufacturer part number on file: 803-4384536-6XXX-53 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-225-4287. Verify interchangeability with system specifications before substitution.
Key specifications for 803-4384536-6XXX-53: General Characteristics Item Description: CARBON STEEL; OCTAGONAL TYPE; FOR 1-1/4 IN. VALVE; 1.276 IN. MALE OCTAGONAL WRENCHING SIZE; 1-27/32 IN. BODY DIA; 1-5/16 IN. MALE SQ DRIVE; 3-11/16 IN. O/A LG IN. 1 specification is 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.