AIC688-4-20 — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

AIC688-4-20: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: SPLINE DRIVE SHEAR HEAD, grip_length: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN, head_height: 0.164 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.422 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-481-3014, 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

AIC688-4-20

NSN: 5306-01-481-3014
FSC: 5306 — Bolts
CAGE: 06725 — SPS TECHNOLOGIES, LLC DBA AIR INDUSTRIES COMPANY DIV AIR INDUSTRIES COMPANY (USA)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	SPLINE DRIVE SHEAR HEAD
grip_length	1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
head_height	0.164 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.422 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN
thread_length	0.397 INCHES NOMINAL IN
fastener_length	1.631 INCHES MINIMUM AND 1.678 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
head_minor_diameter	0.522 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
end_item_identification	F18 E/F
NSN	5306-01-481-3014

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.164 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.631 INCHES MINIMUM AND 1.678 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.397 INCHES NOMINAL IN

•

CRITICALITY CODE JUSTIFICATION: AGAV

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: SPLINE DRIVE SHEAR HEAD

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.164 INCHES NOMINAL IN
FASTENER LENGTH	1.631 INCHES MINIMUM AND 1.678 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 5629 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.397 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATION	AGAV
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	SPLINE DRIVE SHEAR HEAD
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM 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 2

ST3M747-4-20Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

122896-4-20Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is AIC688-4-20?

AIC688-4-20 is a BOLT,CLOSE TOLERANCE.

What parts can replace AIC688-4-20?

There are 2 known substitutes for AIC688-4-20: ST3M747-4-20, 122896-4-20. Substitute compatibility should be verified for your specific system.

What is the NSN for AIC688-4-20?

AIC688-4-20 is cataloged in the U.S. Government catalog under NSN 5306-01-481-3014. This indicates validated use in U.S. government and defense supply chains.

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