Valve, Safety Relief4820-01-551-6566

NSN 4820-01-551-6566 · NIIN 015516566 · Part number 8002(1251)

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 01343

Government record, cited

NSN 4820-01-551-6566 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-551-6566. Manufacturer of record part number: 8002(1251).

Also searched as 4820-01-551-6566 · 4820015516566 · NIIN 015516566 · 01-551-6566 · FSC 4820 Valves, Nonpowered · CAGE 01343 · 8002(1251) · 1251

Nearby stock numbers ← 4820-01-551-6507 Cartridge, Shut-Off Valve · 4820-01-551-6592 →

4820-01-551-6566 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
Connection Style: SOCKET ALL ENDS
Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS
Style Designator: ANGLE
Valve Size: 0.250 INCHES IN
Material: BRONZE BODY
Valve Operation Method: AUTOMATIC OR MANUAL
2 manufacturer part numbers on file

Identification

NSN: 4820-01-551-6566
NIIN: 015516566
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8002(1251)
Manufacturer: Anderson Greenwood Lp Dba Anderson Greenwood Crosby

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-551-6566, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-551-6566
Primary Part Number	8002(1251)
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Status	ACTIVE
Connection Style	SOCKET ALL ENDS
Connection Type	UNTHREADED INTERNAL PIPE ALL ENDS
Style Designator	ANGLE
Valve Size	0.250 INCHES IN
Material	BRONZE BODY
Valve Operation Method	AUTOMATIC OR MANUAL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
8002(1251) PRIMARY	Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
1251	Anderson Greenwood Lp Dba Anderson Greenwood Crosby (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 4820-01-551-6566?

NSN 4820-01-551-6566 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-551-6566?

NSN 4820-01-551-6566 has 2 manufacturer part numbers on file: 8002(1251) (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 1251 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What are the specifications of 8002(1251)?

Key specifications for 8002(1251): Connection Style: SOCKET ALL ENDS; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Style Designator: ANGLE; Valve Size: 0.250 INCHES IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-551-6566 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.

PartsTable Design LLC · partstable.com