3D9139 — CYLINDER ASSEMBLY,HYDRAULIC BRAK

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

3D9139: CYLINDER ASSEMBLY,HYDRAULIC BRAK.

CYLINDER ASSEMBLY,HYDRAULIC BRAK. Key specifications include bore_type: STRAIGHT, port_style: INVERTED FLARE SINGLE PORT, bore_diameter: 1.500 INCHES NOMINAL IN, overall_width: 4.469 INCHES NOMINAL IN, overall_height: 2.375 INCHES NOMINAL IN, compressed_length: 4.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2530-00-192-8638, 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

3D9139

NSN: 2530-00-192-8638
FSC: 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)

SPECIFICATIONS

bore_type	STRAIGHT
port_style	INVERTED FLARE SINGLE PORT
bore_diameter	1.500 INCHES NOMINAL IN
overall_width	4.469 INCHES NOMINAL IN
overall_height	2.375 INCHES NOMINAL IN
compressed_length	4.875 INCHES NOMINAL IN
features_provided	RUBBER BOOT
port_thread_class	2B SINGLE PORT
seat_angle_in_deg	45.0 SINGLE PORT
mounting_provision	THREADED MOUNTING HOLES
port_thread_diameter	0.438 INCHES NOMINAL SINGLE PORT IN
body_outside_diameter	2.125 INCHES NOMINAL IN
NSN	2530-00-192-8638

COMPONENT DIAGRAM

KEY FEATURES

•

CENTER TO CENTER DISTANCE BETWEEN MOUNTING PROVISIONS: 1.625 INCHES NOMINAL IN

•

MOUNTING FACILITY THREAD CLASS: 2B

•

BLEEDING FEATURE QUANTITY: 1

•

COMPRESSED LENGTH: 4.875 INCHES NOMINAL IN

•

SEAT ANGLE IN DEG: 45.0 SINGLE PORT

•

DESIGN CHARACTERISTICS: DOUBLE ACTING SINGLE CYLINDER

•

PORT THREAD SERIES DESIGNATOR: UNS SINGLE PORT

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	2.375 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING PROVISIONS	1.625 INCHES NOMINAL IN
MOUNTING FACILITY THREAD CLASS	2B
BLEEDING FEATURE QUANTITY	1
COMPRESSED LENGTH	4.875 INCHES NOMINAL IN
SEAT ANGLE IN DEG	45.0 SINGLE PORT
DESIGN CHARACTERISTICS	DOUBLE ACTING SINGLE CYLINDER
PORT THREAD SERIES DESIGNATOR	UNS SINGLE PORT
BODY OUTSIDE DIAMETER	2.125 INCHES NOMINAL IN
MOUNTING PROVISION ARRANGEMENT STYLE	TWO HOLE

OTHER ITEMS IN FSC 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2530-00-001-0012 2530-00-001-0035 2530-00-001-2633 2530-00-001-3371 2530-00-001-3390 2530-00-001-3393 2530-00-001-3426 2530-00-001-3427

SUBSTITUTES & CROSS-REFERENCES 3

665970Reference document

Same NSN cross-reference

Reference document — Secondary reference

FD33726Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

FD33726AReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 3D9139?

3D9139 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.

What parts can replace 3D9139?

There are 3 known substitutes for 3D9139: 665970, FD33726, FD33726A. Substitute compatibility should be verified for your specific system.

What is the NSN for 3D9139?

3D9139 is cataloged in the U.S. Government catalog under NSN 2530-00-192-8638. This indicates validated use in U.S. government and defense supply chains.

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