NSN 4820-00-142-2881 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-142-2881. Manufacturer of record part number: G98PC136.
The Disk,valve, cataloged under National Stock Number 4820-00-142-2881, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is M.t. Davidson Company. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
4820-00-142-2881
Primary Part Number
G98PC136
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
M.t. Davidson Company
Status
ACTIVE
Outside Diameter
4.000 INCHES NOMINAL IN
Style Designator
PLAIN
Inside Diameter
0.781 INCHES NOMINAL IN
Media for Which Designed
WATER, FRESH
Material
RUBBER CHLOROPRENE CLASS CR
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5330-00-298-39114169POSSIBLE MATCH
SEAL,PLAIN
Possible match (shared part number)Johns Manville Intl
3120-00-394-6475POSSIBLE MATCH
BEARING,SLEEVE
Possible match (shared part number)
2840-00-407-9165311D936POSSIBLE MATCH
DIPSTICK,ENGINE
Possible match (shared part number)Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
6680-00-445-0864A3342-13 CTR LINEPOSSIBLE MATCH
INDICATOR,SIGHT,LIQUID
Possible match (shared part number)Oil Rite Corp
4730-01-120-5897POSSIBLE MATCH
COUPLING REUSEABLE
Possible match (shared part number)
5999-01-145-63029160-0249POSSIBLE MATCH
MAGNET,PERMANENT
Possible match (shared part number)Keysight Technologies Inc
2990-01-151-54431996-4169POSSIBLE MATCH
CONNECTOR,EXHAUST PIPE
Possible match (shared part number)Wheeler Fleet Solutions, Co.
3020-01-192-4650G98POSSIBLE MATCH
GEAR,WORM
Possible match (shared part number)Carlisle & Finch Co
NSN 4820-00-142-2881 is a Disk,valve, manufactured by M.t. Davidson Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-142-2881?
NSN 4820-00-142-2881 has 2 manufacturer part numbers on file: G98PC136 (M.t. Davidson Company), G99PC136 (M.t. Davidson Company).
What NSN replaces 4820-00-142-2881?
9 possible matches (shared part number, not a government interchangeability claim): 5330-00-298-3911, 3120-00-394-6475, 2840-00-407-9165. Verify interchangeability with system specifications before substitution.
What are the specifications of G98PC136?
Key specifications for G98PC136: Overall Height: 0.750 INCHES NOMINAL IN; Outside Diameter: 4.000 INCHES NOMINAL IN; Style Designator: PLAIN; Inside Diameter: 0.781 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-142-2881 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.