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939099C1 — PISTON,HYDRAULIC BRAKE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

939099C1: PISTON,HYDRAULIC BRAKE.

The PISTON,HYDRAULIC BRAKE is a the manufacturer industrial component. Key specifications include length: 1.590 INCHES NOMINAL IN, piston_cup: INCLUDED, outside_diameter: 2.870 INCHES NOMINAL IN, special_features: W/HOLE 2.380 IN.DIA;GROOVE ON ONE END IN, construction_type: ONE-PIECE, surface_condition: EXTERNALLY GROOVED. This part is cataloged in the U.S.

Government catalog under NSN 2530-01-080-7414, 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
939099C1
NSN: 2530-01-080-7414
FSC: 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
length1.590 INCHES NOMINAL IN
piston_cupINCLUDED
outside_diameter2.870 INCHES NOMINAL IN
special_featuresW/HOLE 2.380 IN.DIA;GROOVE ON ONE END IN
construction_typeONE-PIECE
surface_conditionEXTERNALLY GROOVED
end_item_identification3930-00-048-8695
shoe_actuating_end_typeFLAT BOTTOM
NSN2530-01-080-7414
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,HYDRAULIC BRAKE TITLE COMPONENT PN 939099C1 MFR PISTON,HYDRAULIC BRAKE
KEY FEATURES
•
LENGTH: 1.590 INCHES NOMINAL IN
•
PISTON CUP: INCLUDED
•
SURFACE CONDITION: EXTERNALLY GROOVED
•
OUTSIDE DIAMETER: 2.870 INCHES NOMINAL IN
•
CONSTRUCTION TYPE: ONE-PIECE
•
SHOE ACTUATING END TYPE: FLAT BOTTOM
TECHNICAL CHARACTERISTICS
LENGTH1.590 INCHES NOMINAL IN
PISTON CUPINCLUDED
SURFACE CONDITIONEXTERNALLY GROOVED
OUTSIDE DIAMETER2.870 INCHES NOMINAL IN
SPECIAL FEATURESW/HOLE 2.380 IN.DIA;GROOVE ON ONE END IN
END ITEM IDENTIFICATION3930-00-048-8695
CONSTRUCTION TYPEONE-PIECE
SHOE ACTUATING END TYPEFLAT BOTTOM
SUBSTITUTES & CROSS-REFERENCES 2
74-548Reference document
Same NSN cross-reference
Reference document — Secondary reference
D77523Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 939099C1?
939099C1 is a PISTON,HYDRAULIC BRAKE.
What parts can replace 939099C1?
There are 2 known substitutes for 939099C1: 74-548, D77523. Substitute compatibility should be verified for your specific system.
What is the NSN for 939099C1?
939099C1 is cataloged in the U.S. Government catalog under NSN 2530-01-080-7414. 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.