NSN 4820-01-044-5120 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-044-5120. Manufacturer of record part number: 25675-5.
General Characteristics Item Description: SYNTHETIC RUBBER DIAPHRAGM 2.250 IN. OD 0.218 IN. THK;ALUMINUM ALLOY RETAINER IN
2 manufacturer part numbers on file
Manufacturer of record: Jetstream of Houston, Llp Dba Jetstream of Houston Llp
Identification
NSN: 4820-01-044-5120
NIIN: 010445120
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 25675-5
Manufacturer: Jetstream of Houston, Llp Dba Jetstream of Houston Llp
General Description
The Diaphragm Assembly, cataloged under National Stock Number 4820-01-044-5120, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Jetstream of Houston, Llp Dba Jetstream of Houston Llp. Government technical data includes 1 specification, 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. 3 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
4820-01-044-5120
Primary Part Number
25675-5
Item Name
Diaphragm Assembly
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Jetstream of Houston, Llp Dba Jetstream of Houston Llp
Status
ACTIVE
General Characteristics Item Description
SYNTHETIC RUBBER DIAPHRAGM 2.250 IN. OD 0.218 IN. THK;ALUMINUM ALLOY RETAINER 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 Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5950-01-181-8057POSSIBLE MATCH
REACTOR
Possible match (shared part number)
3020-01-219-6660107315-1POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division
6940-01-601-624810-7315POSSIBLE MATCH
COMPASS,MAGNETIC,SIMULATED
Possible match (shared part number)Simtek, Inc. Dba Simtek Inc
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group (USA)
Related Parts
5950-01-181-8057POSSIBLE MATCH
REACTOR
3020-01-219-6660POSSIBLE MATCH
GEAR,SPUR
107315-1
6940-01-601-6248POSSIBLE MATCH
COMPASS,MAGNETIC,SIMULATED
10-7315
Frequently Asked Questions
What is NSN 4820-01-044-5120?
NSN 4820-01-044-5120 is a Diaphragm Assembly, manufactured by Jetstream of Houston, Llp Dba Jetstream of Houston Llp, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-044-5120?
NSN 4820-01-044-5120 has 2 manufacturer part numbers on file: 25675-5 (Jetstream of Houston, Llp Dba Jetstream of Houston Llp), 10731-5 (Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group).
What NSN replaces 4820-01-044-5120?
3 possible matches (shared part number, not a government interchangeability claim): 5950-01-181-8057, 3020-01-219-6660, 6940-01-601-6248. Verify interchangeability with system specifications before substitution.
What are the specifications of 25675-5?
Key specifications for 25675-5: General Characteristics Item Description: SYNTHETIC RUBBER DIAPHRAGM 2.250 IN. OD 0.218 IN. THK;ALUMINUM ALLOY RETAINER IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-044-5120 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.