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45A221 — ACTUATOR,HYDRAULIC-PNEUMATIC,LIN

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

45A221: ACTUATOR,HYDRAULIC-PNEUMATIC,LIN.

ACTUATOR,HYDRAULIC-PNEUMATIC,LIN. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT, special_features: WEAPON SYSTEM ESSENTIAL; ACTUATOR,VALVE, end_item_identification: HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS), criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-153-9363, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
45A221
NSN: 4810-01-153-9363
NIINs: 011539363, 011550179
FSC: 4810 — Valves, Powered
CAGE: 088A2 — C SYSTEMS LLC DBA CRAIG SYSTEMS DBA EASTERN TECHNOLOGIES (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
special_featuresWEAPON SYSTEM ESSENTIAL; ACTUATOR,VALVE
end_item_identificationHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
criticality_code_justificationFEAT
NSN4810-01-153-9363
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 45A221 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
MATERIALSTEEL STEM
MATERIALIRON CAST BODY
SUBSTITUTES & CROSS-REFERENCES 2
2AH142Reference document
Same NSN cross-reference
Reference document — Secondary reference
2248440Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 45A221?
45A221 is a ACTUATOR,HYDRAULIC-PNEUMATIC,LIN.
What parts can replace 45A221?
There are 2 known substitutes for 45A221: 2AH142, 2248440. Substitute compatibility should be verified for your specific system.
What is the NSN for 45A221?
45A221 is cataloged in the U.S. Government catalog under NSN 4810-01-153-9363. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.