PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

4187799Valve,vent

Name: 4187799
SKU: 2520-01-034-9984

Bae Systems Land & Armaments L.p. · NSN 2520-01-034-9984 · FSC 2520 · No Item Name Available

Verified by PartsTable

NSN 2520-01-034-9984 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-034-9984. Primary manufacturer part number: 4187799.

2520-01-034-9984 — No Item Name Available illustration

Features

Valve,vent — FSC 2520
4 verified cross-references
Primary manufacturer: Bae Systems Land & Armaments L.p.

Applications

Flow control in piping systems
Pressure regulation
Steam and fluid isolation

General Description

The Valve,vent, cataloged under National Stock Number 2520-01-034-9984, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Bae Systems Land & Armaments L.p.. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,vent
FSC / FSG	2520 — No Item Name Available (FSG 25)
Manufacturers	Bae Systems Land & Armaments L.p. (CAGE 80212); Bike Athletic Co (CAGE 97326); Fnss Savunma Sistemleri Anonim Sirketi (CAGE T0720); P P P Mfg Co Inc (CAGE 18434)

Technical Specifications

Parameter	Value
NSN	2520-01-034-9984
Primary Part Number	4187799
Item Name	Valve,vent
FSC / FSG	2520 / 25 — No Item Name Available
Manufacturer	Bae Systems Land & Armaments L.p.
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 7

6220-00-151-5295 INTERCHANGEABLE

Light,warning

5310-00-275-3490F115 INTERCHANGEABLE

Nut,plain,hexagon

Circor Naval Solutions Llc Dba Warren Pumps

7910-00-569-0485F115 INTERCHANGEABLE

Brush Set,fiber,polishing Machin

Malish Brush and Specialty Co Inc

5905-00-958-00503-4TA51FS150 INTERCHANGEABLE

Resistor,fixed,wire Wound,induct

Ohmite Holding, L.l.c. Dba Ohmite Manufacturing

5910-01-038-5395 INTERCHANGEABLE

Capacitor,fixed,mica Dielectric

6210-01-380-2044F115 INTERCHANGEABLE

Fixture,lighting

Pauluhn Electric Manufacturing, Llp Dba Pauluhn Electric

4320-01-575-1388F11-5 INTERCHANGEABLE

Motor,hydraulic

Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division

Cross-Reference Index

Part Number	Manufacturer
4187799 PRIMARY	Bae Systems Land & Armaments L.p. (USA)
F115	Bike Athletic Co (USA)
4187799	Fnss Savunma Sistemleri Anonim Sirketi (TUR)
P66-401	P P P Mfg Co Inc (USA)

Related Parts

6220-00-151-5295INTERCHANGEABLE

LIGHT,WARNING

5310-00-275-3490INTERCHANGEABLE

NUT,PLAIN,HEXAGON

F115

7910-00-569-0485INTERCHANGEABLE

BRUSH SET,FIBER,POLISHING MACHIN

F115

5905-00-958-0050INTERCHANGEABLE

RESISTOR,FIXED,WIRE WOUND,INDUCT

3-4TA51FS150

5910-01-038-5395INTERCHANGEABLE

CAPACITOR,FIXED,MICA DIELECTRIC

6210-01-380-2044INTERCHANGEABLE

FIXTURE,LIGHTING

F115

4320-01-575-1388INTERCHANGEABLE

MOTOR,HYDRAULIC

F11-5

Frequently Asked Questions

What is NSN 2520-01-034-9984?

NSN 2520-01-034-9984 is a Valve,vent, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-01-034-9984?

NSN 2520-01-034-9984 has 4 cross-referenced part numbers: 4187799 (Bae Systems Land & Armaments L.p.), F115 (Bike Athletic Co), 4187799 (Fnss Savunma Sistemleri Anonim Sirketi), P66-401 (P P P Mfg Co Inc).

What NSN replaces 2520-01-034-9984?

There are 7 known substitutes for 2520-01-034-9984: 6220-00-151-5295, 5310-00-275-3490, 7910-00-569-0485 and 4 more. Verify interchangeability with system specifications before substitution.

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.

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