NSN 4820-01-581-2697 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-581-2697. Manufacturer of record part number: 143-1/4SS.
Also searched as4820-01-581-2697 ·
4820015812697 ·
NIIN 015812697 ·
01-581-2697 ·
FSC 4820 Valves, Nonpowered · CAGE 0L1E5 · 143-1/4SS
Nearby stock numbers← 4820-01-581-2692 Valve, Bleeder, Hyd
·
4820-01-581-2701 Valve, Bleeder, Hyd →
4820-01-581-2697 — Valves, Nonpowered
Features
Valve,bleeder,hyd — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Lockheed Martin Corporation
Identification
NSN: 4820-01-581-2697
NIIN: 015812697
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 143-1/4SS
Manufacturer: Lockheed Martin Corporation
General Description
The Valve,bleeder,hyd, cataloged under National Stock Number 4820-01-581-2697, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lockheed Martin Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-581-2697?
NSN 4820-01-581-2697 is a Valve,bleeder,hyd, manufactured by Lockheed Martin Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-581-2697?
NSN 4820-01-581-2697 has 1 manufacturer part number on file: 143-1/4SS (Lockheed Martin Corporation).
Is NSN 4820-01-581-2697 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 4820-01-581-2697?
NSN 4820-01-581-2697 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.