Valve, Check4820-01-491-3335

NSN 4820-01-491-3335 · NIIN 014913335

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-491-3335 · 4820014913335 · NIIN 014913335 · 01-491-3335 · FSC 4820 Valves, Nonpowered · 4054T63P07 · 236-0060-01

Nearby stock numbers ← 4820-01-491-3303 Valve, Check · 4820-01-491-3396 Valve, Ball →

4820-01-491-3335 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Criticality Code Justification: AGAV
Maximum Operating Temp: 375.0 FAHRENHEIT SINGLE RESPONSE DEGF
Media for Which Designed: OIL, LUBRICATING, DIESTER BASE SINGLE RESPONSE

Identification

NSN: 4820-01-491-3335
NIIN: 014913335
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,check, cataloged under National Stock Number 4820-01-491-3335, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-491-3335
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Criticality Code Justification	AGAV
Maximum Operating Temp	375.0 FAHRENHEIT SINGLE RESPONSE DEGF
Media for Which Designed	OIL, LUBRICATING, DIESTER BASE SINGLE RESPONSE

Lifecycle & Compliance

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

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
4054T63P07	3/1 Design control — primary reference U.S. Government activity
236-0060-01	3/2 Design control — primary reference U.S. Government activity

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 4820-01-491-3335?

NSN 4820-01-491-3335 is a Valve,check, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-491-3335?

Key specifications for 4820-01-491-3335: Criticality Code Justification: AGAV; Maximum Operating Temp: 375.0 FAHRENHEIT SINGLE RESPONSE DEGF; Special Features: ATTACHE DUSTCAP; OPERATING TEMP EXTREME - MINUS 65 TO PLUS 375 DEG F; OPERATING TEMP NORMAL - PLUS 175 TO 300 DEG F; PROOF PRESSURE 80 PSIG; OPERATING PRESSURE 40 PSIG; HEX ACROSS FLATS - MIN 1.485, MAX 1.515 IN; MAX LENGTH WITHOUT DUSTCAP - 2.392 IN IN; Media for Which Designed: OIL, LUBRICATING, DIESTER BASE SINGLE RESPONSE. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-491-3335 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