PartsTable TECHNICAL DATA SHEET

NSN 4820-01-481-7939Government record, cited

Valve, Relief, Pressure and Temper4820-01-481-7939

NSN 4820-01-481-7939 · NIIN 014817939 · Part number 863-310984

Guild Associates Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 4X630

Government record, cited

NSN 4820-01-481-7939 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-481-7939. Manufacturer of record part number: 863-310984.

Also searched as 4820-01-481-7939 · 4820014817939 · NIIN 014817939 · 01-481-7939 · FSC 4820 Valves, Nonpowered · CAGE 4X630 · 863-310984 · 920BFEM01-CF

Nearby stock numbers ← 4820-01-481-7937 Valve, Check · 4820-01-481-7940 Valve, Relief, Pressure and Temper →

4820-01-481-7939 — Valves, Nonpowered

Features

Valve,relief,pressure and Temper — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Guild Associates Inc

Identification

NSN: 4820-01-481-7939
NIIN: 014817939
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 863-310984
Manufacturer: Guild Associates Inc

General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-481-7939, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Guild Associates Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-481-7939
Primary Part Number	863-310984
Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Guild Associates Inc
Status	ACTIVE

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
863-310984 PRIMARY	Guild Associates Inc (USA)

Reference documents

Reference	Meaning
920BFEM01-CF	5/9 Secondary reference American Cyanamid Co

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 4820-01-481-7939?

NSN 4820-01-481-7939 is a Valve,relief,pressure and Temper, manufactured by Guild Associates Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-481-7939?

NSN 4820-01-481-7939 has 1 manufacturer part number on file: 863-310984 (Guild Associates Inc).

What are the specifications of 863-310984?

Key specifications for 863-310984: End Item Identification: CONTRACTOR LOGISITC SUPPORT MODEL M871, 30-FOOT TRAILER, LAUNDRY ADVANCED SYSTEM (LADDS), NSN 2330-00-122-6779 CONTRACT DAAK60-97-C-9222 TM 9-3510-122-24P. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-481-7939 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.

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