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450-0172 — VALVE,LINEAR,DIRECTIONAL CONTROL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

450-0172: VALVE,LINEAR,DIRECTIONAL CONTROL.

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include material: STEEL OVERALL, long_arm_length: 8.344 INCHES NOMINAL IN, style_designator: L-HANDLE, functional_description: USED TO INSTALL/REMOVE PROP BLADE, wrenching_surface_size: 0.375 INCHES NOMINAL BOTH ENDS IN, end_item_identification: INNERSPACE CORP MODEL 4500 MOD 1-2 THRUSTER. This part is cataloged in the U.S.

Government catalog under NSN 5355-00-446-1975, 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
450-0172
NSN: 5355-00-446-1975
NIINs: 004461975, 011802018, 015734852
FSC: 5355 — Knobs and Pointers
CAGE: 20284 — AIMTRON SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
long_arm_length8.344 INCHES NOMINAL IN
style_designatorL-HANDLE
functional_descriptionUSED TO INSTALL/REMOVE PROP BLADE
wrenching_surface_size0.375 INCHES NOMINAL BOTH ENDS IN
end_item_identificationINNERSPACE CORP MODEL 4500 MOD 1-2 THRUSTER
wrenching_surface_shapeHEXAGON BOTH ENDS EXTERNAL
NSN5355-00-446-1975
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,LINEAR,DIRECTIONAL CONTROL TITLE COMPONENT PN 450-0172 MFR VALVE,LINEAR,DIRECTION
KEY FEATURES
•
SHANK DIAMETER: 1.250 INCHES NOMINAL IN
•
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE: 0.211 INCHES NOMINAL IN
•
SHAFT ACCOMMODATION STYLE: ROUND
•
OVERALL THICKNESS: 1.437 INCHES NOMINAL IN
•
SHANK LENGTH: 0.422 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND WITH CRANK
•
SETSCREW HOLE QUANTITY: 2
•
INSIDE DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER1.250 INCHES NOMINAL IN
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE0.211 INCHES NOMINAL IN
SHAFT ACCOMMODATION STYLEROUND
OVERALL THICKNESS1.437 INCHES NOMINAL IN
SHANK LENGTH0.422 INCHES NOMINAL IN
STYLE DESIGNATORROUND WITH CRANK
SETSCREW HOLE QUANTITY2
INSIDE DIAMETER0.250 INCHES NOMINAL IN
SHANK STYLESTRAIGHT
GRIPPING SURFACE CONDITIONGRIP AID
SUBSTITUTES & CROSS-REFERENCES 2
K1276Reference document
Same NSN cross-reference
Reference document — Secondary reference
PP1857Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 450-0172?
450-0172 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What parts can replace 450-0172?
There are 2 known substitutes for 450-0172: K1276, PP1857. Substitute compatibility should be verified for your specific system.
What is the NSN for 450-0172?
450-0172 is cataloged in the U.S. Government catalog under NSN 5355-00-446-1975. 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.