NSN 4820-00-138-5950 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-138-5950. Manufacturer of record part number: 3168-3.
Also searched as4820-00-138-5950 ·
4820001385950 ·
NIIN 001385950 ·
00-138-5950 ·
FSC 4820 Valves, Nonpowered · CAGE 26136 · 3168-3
General Characteristics Item Description: BRASS WITH ALUMINUM JACKET; 0.375 IN. OD; 1.490 IN. LG; FIRST END INTERNALLY THREADED SIZE UNC 0.138-32 RH; SECOND END 0.031 IN. ORIFICE; BODY IS TAPPED BY A U SHAPED TUBE SIZE 0.082 IN. OD IN
1 manufacturer part number on file
Manufacturer of record: Kearflex Engineering Company
Identification
NSN: 4820-00-138-5950
NIIN: 001385950
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 3168-3
Manufacturer: Kearflex Engineering Company
General Description
The Line,valve, cataloged under National Stock Number 4820-00-138-5950, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kearflex Engineering Company. Government technical data includes 1 specification, 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. 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
4820-00-138-5950
Primary Part Number
3168-3
Item Name
Line,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Kearflex Engineering Company
Status
ACTIVE
General Characteristics Item Description
BRASS WITH ALUMINUM JACKET; 0.375 IN. OD; 1.490 IN. LG; FIRST END INTERNALLY THREADED SIZE UNC 0.138-32 RH; SECOND END 0.031 IN. ORIFICE; BODY IS TAPPED BY A U SHAPED TUBE SIZE 0.082 IN. OD IN
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5330-00-297-633031683POSSIBLE MATCH
PACKING,PREFORMED
Possible match (shared part number)Dana Corp Spicer Transmission Div
5310-01-242-68263-16-83POSSIBLE MATCH
WASHER
Possible match (shared part number)Dana Corp Spicer Transmission Div
NSN 4820-00-138-5950 is a Line,valve, manufactured by Kearflex Engineering Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-138-5950?
NSN 4820-00-138-5950 has 1 manufacturer part number on file: 3168-3 (Kearflex Engineering Company).
What NSN replaces 4820-00-138-5950?
4 possible matches (shared part number, not a government interchangeability claim): 5330-00-297-6330, 5310-01-242-6826, 4130-01-359-7441. Verify interchangeability with system specifications before substitution.
What are the specifications of 3168-3?
Key specifications for 3168-3: General Characteristics Item Description: BRASS WITH ALUMINUM JACKET; 0.375 IN. OD; 1.490 IN. LG; FIRST END INTERNALLY THREADED SIZE UNC 0.138-32 RH; SECOND END 0.031 IN. ORIFICE; BODY IS TAPPED BY A U SHAPED TUBE SIZE 0.082 IN. OD IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-00-138-5950 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.