PartsTable TECHNICAL DATA SHEET

NSN 4820-01-184-4279Government record, cited

Seat, Valve4820-01-184-4279

NSN 4820-01-184-4279 · NIIN 011844279 · Part number N5506 PIECE 21

Tate Andale, Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 09032

Government record, cited

NSN 4820-01-184-4279 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-184-4279. Manufacturer of record part number: N5506 PIECE 21.

Also searched as 4820-01-184-4279 · 4820011844279 · NIIN 011844279 · 01-184-4279 · FSC 4820 Valves, Nonpowered · CAGE 09032 · N5506 PIECE 21 · N5506

Nearby stock numbers ← 4820-01-184-4278 Seat, Valve · 4820-01-184-4295 Valve, Regulating, Fluid Pressure →

4820-01-184-4279 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Flange Seat to Disk End Height: 0.213 INCHES NOMINAL IN
Flange Diameter: 3.200 INCHES NOMINAL IN
Body Outside Diameter: 3.214 INCHES NOMINAL IN
Body Inside Diameter: 1.400 INCHES NOMINAL IN
Under Flange Height: 0.456 INCHES NOMINAL IN
Material: COPPER ALLOY OVERALL
1 manufacturer part number on file

Identification

NSN: 4820-01-184-4279
NIIN: 011844279
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: N5506 PIECE 21
Manufacturer: Tate Andale, Llc

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-184-4279, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tate Andale, Llc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-184-4279
Primary Part Number	N5506 PIECE 21
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Tate Andale, Llc
Status	ACTIVE
Flange Seat to Disk End Height	0.213 INCHES NOMINAL IN
Flange Diameter	3.200 INCHES NOMINAL IN
Body Outside Diameter	3.214 INCHES NOMINAL IN
Body Inside Diameter	1.400 INCHES NOMINAL IN
Under Flange Height	0.456 INCHES NOMINAL IN
Material	COPPER 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 12

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

4820-01-190-70978-60-FAT770 1 1/2IN POSSIBLE MATCH

VALVE,REGULATING,FLUID PRESSURE

Possible match (shared part number)Tate Andale, Llc

4820-01-190-7112N5506 PIECE 175 POSSIBLE MATCH

CAP,VALVE

Possible match (shared part number)Tate Andale, Llc

4420-01-191-4233N5506 PIECE 111 POSSIBLE MATCH

JACKSCREW,OIL COOLER

Possible match (shared part number)Tate Andale, Llc

4730-01-195-1886N5506 PIECE 153 POSSIBLE MATCH

REDUCER,TUBE

Possible match (shared part number)Tate Andale, Llc

4730-01-195-7338N5506 PIECE 143 POSSIBLE MATCH

REDUCER,PIPE

Possible match (shared part number)Tate Andale, Llc

4420-01-196-0602N5506 GROUP 1 RH POSSIBLE MATCH

COOLER,FLUID,INDUSTRIAL

Possible match (shared part number)Tate Andale, Llc

4420-01-196-1262N5506 PIECE 101 POSSIBLE MATCH

GLAND,COOLER

Possible match (shared part number)Tate Andale, Llc

4420-01-196-4705N5506 PIECE 98 POSSIBLE MATCH

HEAD,COOLER

Possible match (shared part number)Tate Andale, Llc

4420-01-196-4706N5506 PIECE 100 POSSIBLE MATCH

HEAD,COOLER

Possible match (shared part number)Tate Andale, Llc

4420-01-196-4707N5506 PIECE 139 POSSIBLE MATCH

VALVE,VENT

Possible match (shared part number)Tate Andale, Llc

Cross-Reference Index

Part Number	Manufacturer
N5506 PIECE 21 PRIMARY	Tate Andale, Llc (USA)

Reference documents

Reference	Meaning
N5506	D/9 Drawing number reference only Tate Andale, Llc

Related Parts

4820-01-190-7097POSSIBLE MATCH

VALVE,REGULATING,FLUID PRESSURE

8-60-FAT770 1 1/2IN

4820-01-190-7112POSSIBLE MATCH

CAP,VALVE

N5506 PIECE 175

4420-01-191-4233POSSIBLE MATCH

JACKSCREW,OIL COOLER

N5506 PIECE 111

4730-01-195-1886POSSIBLE MATCH

REDUCER,TUBE

N5506 PIECE 153

4730-01-195-7338POSSIBLE MATCH

REDUCER,PIPE

N5506 PIECE 143

4420-01-196-0602POSSIBLE MATCH

COOLER,FLUID,INDUSTRIAL

N5506 GROUP 1 RH

4420-01-196-1262POSSIBLE MATCH

GLAND,COOLER

N5506 PIECE 101

4420-01-196-4705POSSIBLE MATCH

HEAD,COOLER

N5506 PIECE 98

4420-01-196-4706POSSIBLE MATCH

HEAD,COOLER

N5506 PIECE 100

4420-01-196-4707POSSIBLE MATCH

VALVE,VENT

N5506 PIECE 139

4420-01-196-7547POSSIBLE MATCH

HEAD,MAIN

N5506 PIECE 99

4420-01-196-7637POSSIBLE MATCH

COOLER,FLUID,INDUSTRIAL

N5506 GROUP 1 LH

Frequently Asked Questions

What is NSN 4820-01-184-4279?

NSN 4820-01-184-4279 is a Seat,valve, manufactured by Tate Andale, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-184-4279?

NSN 4820-01-184-4279 has 1 manufacturer part number on file: N5506 PIECE 21 (Tate Andale, Llc).

What NSN replaces 4820-01-184-4279?

12 possible matches (shared part number, not a government interchangeability claim): 4820-01-190-7097, 4820-01-190-7112, 4420-01-191-4233. Verify interchangeability with system specifications before substitution.

What are the specifications of N5506 PIECE 21?

Key specifications for N5506 PIECE 21: Flange Seat to Disk End Height: 0.213 INCHES NOMINAL IN; Flange Diameter: 3.200 INCHES NOMINAL IN; Overall Height: 0.670 INCHES NOMINAL IN; Body Outside Diameter: 3.214 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-184-4279 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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