Stem, Needle Valve4820-01-335-8383

NSN 4820-01-335-8383 · NIIN 013358383

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-335-8383 · 4820013358383 · NIIN 013358383 · 01-335-8383 · FSC 4820 Valves, Nonpowered · 505-4457349 ITEM 102 · 505-4457349 ITEM 102L1

Nearby stock numbers ← 4820-01-335-8377 Valve, Gate · 4820-01-335-8386 Stem, Fluid Valve →

4820-01-335-8383 — Valves, Nonpowered

Features

Stem,needle Valve — FSC 4820
Largest Outside Diameter: 0.243 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
Criticality Code Justification: ZZZY
Material Document and Classification: MIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE
Material: COPPER ALLOY
Reference Number Differentiating Characteristics: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS

Identification

NSN: 4820-01-335-8383
NIIN: 013358383
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Stem,needle Valve, cataloged under National Stock Number 4820-01-335-8383, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-335-8383
Item Name	Stem,needle Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Largest Outside Diameter	0.243 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
Criticality Code Justification	ZZZY
Material Document and Classification	MIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE
Material	COPPER ALLOY
Reference Number Differentiating Characteristics	QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS

Lifecycle & Compliance

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

Cross-Reference Index

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

Reference documents

Reference	Meaning
505-4457349 ITEM 102	3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding
505-4457349 ITEM 102L1	5/1 Secondary reference Naval Inventory Control Point Mechanicsburg

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 4820-01-335-8383?

NSN 4820-01-335-8383 is a Stem,needle Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-335-8383?

Key specifications for 4820-01-335-8383: Largest Outside Diameter: 0.243 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN; Criticality Code Justification: ZZZY; Material Document and Classification: MIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE; Overall Length: 2.062 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-335-8383 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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