ST2138-06 — BOLT,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

ST2138-06: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, hole_type: DRILLED, head_style: ROUND W/WRENCH FLATS CHAMFERED, head_height: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.730 INCHES MINIMUM AND 0.737 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-320-1331, 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

ST2138-06

NSN: 5306-01-320-1331
FSC: 5306 — Bolts
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)

SPECIFICATIONS

material	TITANIUM ALLOY OVERALL
hole_type	DRILLED
head_style	ROUND W/WRENCH FLATS CHAMFERED
head_height	0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.730 INCHES MINIMUM AND 0.737 INCHES MAXIMUM IN
hole_diameter	0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
hole_quantity	2
thread_length	0.507 INCHES MINIMUM AND 0.598 INCHES MAXIMUM IN
fastener_length	0.688 INCHES NOMINAL IN
special_features	CHAMFER 0.015/0.025 IN. X 45 DEG ON BOTTOM OF HEAD;HEAD HOLE CENTERS 0.260 IN. FROM CENTER OF HEAD,AND ARESPACED 180 DEGREES APART IN
thread_direction	RIGHT-HAND
NSN	5306-01-320-1331

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.688 INCHES NOMINAL IN

•

THREAD LENGTH: 0.507 INCHES MINIMUM AND 0.598 INCHES MAXIMUM IN

•

HOLE CONFIGURATION STYLE: ROUND PERPENDICULAR

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 7460 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: ROUND W/WRENCH FLATS CHAMFERED

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
FASTENER LENGTH	0.688 INCHES NOMINAL IN
THREAD LENGTH	0.507 INCHES MINIMUM AND 0.598 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLE	ROUND PERPENDICULAR
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 7460 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	ROUND W/WRENCH FLATS CHAMFERED
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.320 INCHES NOMINAL IN
SPECIAL FEATURES	CHAMFER 0.015/0.025 IN. X 45 DEG ON BOTTOM OF HEAD;HEAD HOLE CENTERS 0.260 IN. FROM CENTER OF HEAD,AND ARESPACED 180 DEGREES APART IN

OTHER ITEMS IN FSC 5306 — Bolts

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

5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017

SUBSTITUTES & CROSS-REFERENCES 1

5306PL1499223Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 ST2138-06?

ST2138-06 is a BOLT,MACHINE.

What parts can replace ST2138-06?

There is 1 known substitute for ST2138-06: 5306PL1499223. Substitute compatibility should be verified for your specific system.

What is the NSN for ST2138-06?

ST2138-06 is cataloged in the U.S. Government catalog under NSN 5306-01-320-1331. This indicates validated use in U.S. government and defense supply chains.

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