AP391D16 — NUT,PLAIN,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

AP391D16: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, nut_style: HEXAGON, nut_height: 0.338 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNJS, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-051-0645, 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

AP391D16

NSN: 5310-01-051-0645
FSC: 5310 — Nuts and Washers
CAGE: 01673 — SPS TECHNOLOGIES, LLC DBA AIRDROME PRECISION COMPONENTS (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 2024 OVERALL
nut_style	HEXAGON
nut_height	0.338 INCHES NOMINAL IN
thread_class	3B
thread_series	UNJS
thread_direction	RIGHT-HAND
countersink_angle	90.0 DEGREES NOMINAL NUT
surface_treatment	ANODIZE OVERALL
width_across_flats	1.500 INCHES NOMINAL IN
nominal_thread_size	1.250 INCHES IN
bearing_surface_type	CHAMFERED
thread_quantity_per_inch	14
NSN	5310-01-051-0645

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 1.500 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNJS

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/3,T42 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 1.250 INCHES IN

•

NUT HEIGHT: 0.338 INCHES NOMINAL IN

•

SURFACE TREATMENT: ANODIZE OVERALL

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	1.500 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNJS
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-200/3,T42 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	1.250 INCHES IN
NUT HEIGHT	0.338 INCHES NOMINAL IN
SURFACE TREATMENT	ANODIZE OVERALL
COUNTERSINK ANGLE	90.0 DEGREES NOMINAL NUT
NUT STYLE	HEXAGON

OTHER ITEMS IN FSC 5310 — Nuts and Washers

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

5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540

SUBSTITUTES & CROSS-REFERENCES 6

5310PL1934427Reference document

Same NSN cross-reference

Reference document — Informative reference only

5310PL1768630Reference document

Same NSN cross-reference

Reference document — Informative reference only

C7557-16Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

5310PL0639290Reference document

Same NSN cross-reference

Reference document — Informative reference only

AE16428-16Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

AFP1020D16Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 AP391D16?

AP391D16 is a NUT,PLAIN,HEXAGON.

What parts can replace AP391D16?

There are 6 known substitutes for AP391D16: 5310PL1934427, 5310PL1768630, C7557-16 and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for AP391D16?

AP391D16 is cataloged in the U.S. Government catalog under NSN 5310-01-051-0645. This indicates validated use in U.S. government and defense supply chains.

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