NSN 2835-00-040-2950 · NIIN 000402950 · Part number 75021
Honeywell International Inc. Div Aerospace - Torrance · FSC 2835 — Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components · FSG 28 — Engines, Turbines, and Components · CAGE 70210
Government record, cited
NSN 2835-00-040-2950 — this item is cataloged by the U.S. Government under National Stock Number 2835-00-040-2950. Manufacturer of record part number: 75021.
Also searched as2835-00-040-2950 ·
2835000402950 ·
NIIN 000402950 ·
00-040-2950 ·
FSC 2835 Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components · CAGE 70210 · 75021
General Characteristics Item Description: MATL 24ST AL ALLOY COND T4,SPEC QQ-A-268;0.92 IN. MIN 0.94 IN. MAX LG,0.612 IN. MIN 0.616 IN. MAX OD,0.143 IN. MIN 0.148 IN. MAX THRU ID;ANODIZE PER SPEC MIL-A-8625;SUPERCEEDS P/N 75433IN PART IN
1 manufacturer part number on file
Manufacturer of record: Honeywell International Inc. Div Aerospace - Torrance
Identification
NSN: 2835-00-040-2950
NIIN: 000402950
FSC: 2835 — Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: 75021
Manufacturer: Honeywell International Inc. Div Aerospace - Torrance
General Description
The Cap,oil Pump Primer, cataloged under National Stock Number 2835-00-040-2950, is classified within Federal Supply Class 2835 (Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
2835-00-040-2950
Primary Part Number
75021
Item Name
Cap,oil Pump Primer
FSC / FSG
2835 / 28 — Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components
Manufacturer
Honeywell International Inc. Div Aerospace - Torrance
Status
ACTIVE
General Characteristics Item Description
MATL 24ST AL ALLOY COND T4,SPEC QQ-A-268;0.92 IN. MIN 0.94 IN. MAX LG,0.612 IN. MIN 0.616 IN. MAX OD,0.143 IN. MIN 0.148 IN. MAX THRU ID;ANODIZE PER SPEC MIL-A-8625;SUPERCEEDS P/N 75433IN PART 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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5930-00-556-775275021POSSIBLE MATCH
SWITCH,PRESSURE
Possible match (shared part number)Hydra-Electric Company Dba Hydra-Electric Co
5342-00-893-603375021-1POSSIBLE MATCH
MOUNT,RESILIENT,WEAPON SYSTEM
Possible match (shared part number)Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
2915-00-992-114075021POSSIBLE MATCH
RETAINER,CHECK VALV
Possible match (shared part number)Triumph Engine Control Systems Llc
3110-01-168-988910512636POSSIBLE MATCH
BEARING,ROLLER,NEEDLE
Possible match (shared part number)Cadillac Gage Textron Inc.
4940-01-398-2978TIF 5050POSSIBLE MATCH
LEAK DETECTOR,REFRIGERANT GAS
Possible match (shared part number)Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons
9150-01-732-714375021POSSIBLE MATCH
PENETRATING OIL
Possible match (shared part number)C R C Chemicals U S a
Honeywell International Inc. Div Aerospace - Torrance (USA)
Reference documents
Reference
Meaning
75021
5/9Secondary reference
Alliedsignal Inc Dba Allied-Signal Aerospace Co
75021
3/2Design control — primary reference
U.S. Government activity
75021
5/9Secondary reference
U.S. Government activity
Related Parts
5930-00-556-7752POSSIBLE MATCH
SWITCH,PRESSURE
75021
5342-00-893-6033POSSIBLE MATCH
MOUNT,RESILIENT,WEAPON SYSTEM
75021-1
2915-00-992-1140POSSIBLE MATCH
RETAINER,CHECK VALV
75021
3110-01-168-9889POSSIBLE MATCH
BEARING,ROLLER,NEEDLE
10512636
4940-01-398-2978POSSIBLE MATCH
LEAK DETECTOR,REFRIGERANT GAS
TIF 5050
9150-01-732-7143POSSIBLE MATCH
PENETRATING OIL
75021
Frequently Asked Questions
What is NSN 2835-00-040-2950?
NSN 2835-00-040-2950 is a Cap,oil Pump Primer, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 2835, Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components. Status: active.
What part numbers are listed for NSN 2835-00-040-2950?
NSN 2835-00-040-2950 has 1 manufacturer part number on file: 75021 (Honeywell International Inc. Div Aerospace - Torrance).
What NSN replaces 2835-00-040-2950?
6 possible matches (shared part number, not a government interchangeability claim): 5930-00-556-7752, 5342-00-893-6033, 2915-00-992-1140. Verify interchangeability with system specifications before substitution.
What are the specifications of 75021?
Key specifications for 75021: General Characteristics Item Description: MATL 24ST AL ALLOY COND T4,SPEC QQ-A-268;0.92 IN. MIN 0.94 IN. MAX LG,0.612 IN. MIN 0.616 IN. MAX OD,0.143 IN. MIN 0.148 IN. MAX THRU ID;ANODIZE PER SPEC MIL-A-8625;SUPERCEEDS P/N 75433IN PART IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 2835-00-040-2950 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.