PartsTable TECHNICAL DATA SHEET

NSN 4820-01-133-4101Government record, cited

Bar, Valve4820-01-133-4101

NSN 4820-01-133-4101 · NIIN 011334101

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-133-4101 · 4820011334101 · NIIN 011334101 · 01-133-4101 · FSC 4820 Valves, Nonpowered · 412-4678004 · 412-4678004 ITEM 11

Nearby stock numbers ← 4820-01-133-4094 · 4820-01-133-4102 Housing, Bellows, Condenser →

4820-01-133-4101 — Valves, Nonpowered

Features

Bar,valve — FSC 4820
General Characteristics Item Description: CORROSION RESISTING STEEL

Identification

NSN: 4820-01-133-4101
NIIN: 011334101
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Bar,valve, cataloged under National Stock Number 4820-01-133-4101, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-133-4101
Item Name	Bar,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
General Characteristics Item Description	CORROSION RESISTING STEEL

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

⇄ Related Items 4

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5310-01-140-2080412-4678004 ITEM 20 POSSIBLE MATCH

NUT,SEAL ADJUSTING

Possible match (shared part number)Naval Ship Systems Command

4820-01-169-9733412-4678004 ITEM 12 POSSIBLE MATCH

HUB,VALVE

Possible match (shared part number)Naval Ship Systems Command

4820-01-211-5339412-4678004 ITEM 1 POSSIBLE MATCH

MOUNT,VALVE

Possible match (shared part number)Naval Ship Systems Command

4820-01-249-9925 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)

Cross-Reference Index

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

Reference documents

Reference	Meaning
412-4678004	D/9 Drawing number reference only U.S. Government activity
412-4678004 ITEM 11	3/2 Design control — primary reference U.S. Government activity

Related Parts

5310-01-140-2080POSSIBLE MATCH

NUT,SEAL ADJUSTING

412-4678004 ITEM 20

4820-01-169-9733POSSIBLE MATCH

HUB,VALVE

412-4678004 ITEM 12

4820-01-211-5339POSSIBLE MATCH

MOUNT,VALVE

412-4678004 ITEM 1

4820-01-249-9925POSSIBLE MATCH

STEM,FLUID VALVE

Frequently Asked Questions

What is NSN 4820-01-133-4101?

NSN 4820-01-133-4101 is a Bar,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-133-4101?

4 possible matches (shared part number, not a government interchangeability claim): 5310-01-140-2080, 4820-01-169-9733, 4820-01-211-5339. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-133-4101?

Key specifications for 4820-01-133-4101: General Characteristics Item Description: CORROSION RESISTING STEEL. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-133-4101 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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