X-154-4 — BOLT,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

X-154-4: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: DISHED HEXAGON, head_height: 0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN, fastener_length: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-237-6829, 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

X-154-4

NSN: 5306-01-237-6829
FSC: 5306 — Bolts
CAGE: 52845 — KOHLER CO ENGINE PLANT DIV (USA)

SPECIFICATIONS

head_style	DISHED HEXAGON
head_height	0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
thread_class	2A A
thread_length	1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
fastener_length	1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
special_features	OUTSIDE DIA IS 0.540/0.556 IN,0.078 IN THICK,0.125 IN WIDTH,SURFACE TREATMENT IS ZINC PHOSPHATE ON WASHER THAT IS INCLUDED IN
thread_direction	RIGHT-HAND
surface_treatment	PHOSPHATE ZINC OVERALL
width_between_flats	0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nominal_thread_diameter	0.312 INCHES IN
thread_quantity_per_inch	18
thread_series_designator	UNIFIED NATIONAL COARSE (UNC)
NSN	5306-01-237-6829

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN

•

THREAD LENGTH: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN

•

NOMINAL THREAD DIAMETER: 0.312 INCHES IN

•

HEAD STYLE: DISHED HEXAGON

•

THREAD DIRECTION: RIGHT-HAND

•

WIDTH BETWEEN FLATS: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
FASTENER LENGTH	1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
THREAD LENGTH	1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER	0.312 INCHES IN
HEAD STYLE	DISHED HEXAGON
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
SPECIAL FEATURES	OUTSIDE DIA IS 0.540/0.556 IN,0.078 IN THICK,0.125 IN WIDTH,SURFACE TREATMENT IS ZINC PHOSPHATE ON WASHER THAT IS INCLUDED IN
SURFACE TREATMENT	PHOSPHATE ZINC OVERALL
THREAD CLASS	2A A

SUBSTITUTES & CROSS-REFERENCES 1

V-25 086 00Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is X-154-4?

X-154-4 is a BOLT,MACHINE.

What parts can replace X-154-4?

There is 1 known substitute for X-154-4: V-25 086 00. Substitute compatibility should be verified for your specific system.

What is the NSN for X-154-4?

X-154-4 is cataloged in the U.S. Government catalog under NSN 5306-01-237-6829. This indicates validated use in U.S. government and defense supply chains.

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