PartsTable TECHNICAL DATA SHEET

NSN 4820-01-357-3453Government record, cited

Seat, Valve4820-01-357-3453

NSN 4820-01-357-3453 · NIIN 013573453

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-357-3453 · 4820013573453 · NIIN 013573453 · 01-357-3453 · FSC 4820 Valves, Nonpowered · NB2522E-0000 ITEM 6 3IN · NB2522E-0300 ITEM 6 · NB2522E-0000 ITEM 6 3IN · NB2522E-0300 ITEM 6 · NB2522E-0000

Nearby stock numbers ← 4820-01-357-3409 Valve, Pneumatic Tank · 4820-01-357-3454 Seat, Valve →

4820-01-357-3453 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: NICKEL ALLOY OVERALL

Identification

NSN: 4820-01-357-3453
NIIN: 013573453
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-357-3453, 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1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-357-3453
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Material	NICKEL ALLOY OVERALL

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 10

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

4820-01-357-3590NB2522E-0000 ITEM 32 3IN POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Hunt Valve Company, Inc.

4820-01-357-5637NB2522E-0000 3IN POSSIBLE MATCH

VALVE,GLOBE

Possible match (shared part number)Hunt Valve Company, Inc.

4820-01-357-9087NB2522E-0000 ITEM 10 3IN POSSIBLE MATCH

FLANGE,GLAND,VALVE

Possible match (shared part number)Hunt Valve Company, Inc.

4820-01-446-0477 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)

4820-01-446-1492 POSSIBLE MATCH

VALVE,GLOBE

Possible match (shared part number)

4820-01-446-1528 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)

4820-01-446-4654 POSSIBLE MATCH

SEAT,VALVE

Possible match (shared part number)

4820-01-447-5931 POSSIBLE MATCH

SEAT,VALVE

Possible match (shared part number)

4820-01-447-6192 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)

4820-01-447-6289 POSSIBLE MATCH

DISK,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
NB2522E-0000 ITEM 6 3IN	C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc.
NB2522E-0300 ITEM 6	5/9 Secondary reference Pima Valve, Llc
NB2522E-0000 ITEM 6 3IN	3/9 Design control — primary reference Pima Valve, Llc
NB2522E-0300 ITEM 6	C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc.
NB2522E-0000	D/9 Drawing number reference only Pima Valve, Llc

Related Parts

4820-01-357-3590POSSIBLE MATCH

NB2522E-0000 ITEM 32 3IN

4820-01-357-5637POSSIBLE MATCH

NB2522E-0000 3IN

4820-01-357-9087POSSIBLE MATCH

FLANGE,GLAND,VALVE

NB2522E-0000 ITEM 10 3IN

4820-01-446-0477POSSIBLE MATCH

STEM,FLUID VALVE

4820-01-446-1492POSSIBLE MATCH

4820-01-446-1528POSSIBLE MATCH

4820-01-446-4654POSSIBLE MATCH

4820-01-447-5931POSSIBLE MATCH

4820-01-447-6192POSSIBLE MATCH

STEM,FLUID VALVE

4820-01-447-6289POSSIBLE MATCH

Frequently Asked Questions

What is NSN 4820-01-357-3453?

NSN 4820-01-357-3453 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-357-3453?

10 possible matches (shared part number, not a government interchangeability claim): 4820-01-357-3590, 4820-01-357-5637, 4820-01-357-9087. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-357-3453?

Key specifications for 4820-01-357-3453: Material: NICKEL ALLOY OVERALL. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-357-3453 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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