NSN 4820-01-375-1284 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-375-1284. Manufacturer of record part number: 2688W400.
Also searched as4820-01-375-1284 ·
4820013751284 ·
NIIN 013751284 ·
01-375-1284 ·
FSC 4820 Valves, Nonpowered · CAGE 0GD25 · 2688W400
Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS
Connection Type: THREADED CARTRIDGE ALL ENDS
Style Designator: STRAIGHT THRU
Valve Operation Method: AUTOMATIC
1 manufacturer part number on file
Manufacturer of record: Allied Defense Industries, Llc Dba Ams Distribution
Identification
NSN: 4820-01-375-1284
NIIN: 013751284
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2688W400
Manufacturer: Allied Defense Industries, Llc Dba Ams Distribution
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-375-1284, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Allied Defense Industries, Llc Dba Ams Distribution. Government technical data includes 5 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-375-1284
Primary Part Number
2688W400
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Allied Defense Industries, Llc Dba Ams Distribution
Allied Defense Industries, Llc Dba Ams Distribution (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
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 4820-01-375-1284?
NSN 4820-01-375-1284 is a Valve,safety Relief, manufactured by Allied Defense Industries, Llc Dba Ams Distribution, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-375-1284?
NSN 4820-01-375-1284 has 1 manufacturer part number on file: 2688W400 (Allied Defense Industries, Llc Dba Ams Distribution).
What are the specifications of 2688W400?
Key specifications for 2688W400: Flow Control Device: DISK; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED CARTRIDGE ALL ENDS; Style Designator: STRAIGHT THRU. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-375-1284 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.
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.