80221C-720 — NUT,PLAIN,EXTENDED WASHER,DOUBLE

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

80221C-720: NUT,PLAIN,EXTENDED WASHER,DOUBLE.

NUT,PLAIN,EXTENDED WASHER,DOUBLE. Key specifications include material: NICKEL ALLOY 718 OVERALL, nut_style: DOUBLE HEXAGON, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.520 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-657-0433, 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

80221C-720

NSN: 5310-01-657-0433
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	NICKEL ALLOY 718 OVERALL
nut_style	DOUBLE HEXAGON
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.520 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
washer_thickness	0.075 INCHES NOMINAL IN
surface_treatment	CADMIUM OVERALL
width_across_flats	0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_size	0.4375 INCHES IN
washer_outside_diameter	0.705 INCHES MINIMUM IN
thread_quantity_per_inch	20
NSN	5310-01-657-0433

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.705 INCHES MINIMUM IN

•

WIDTH ACROSS FLATS: 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TY I, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

WASHER THICKNESS: 0.075 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.520 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER	0.705 INCHES MINIMUM IN
WIDTH ACROSS FLATS	0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416, TY I, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
WASHER THICKNESS	0.075 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5662 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.4375 INCHES IN
SURFACE TREATMENT	CADMIUM OVERALL

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 1

5310PL2029917Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 80221C-720?

80221C-720 is a NUT,PLAIN,EXTENDED WASHER,DOUBLE.

What parts can replace 80221C-720?

There is 1 known substitute for 80221C-720: 5310PL2029917. Substitute compatibility should be verified for your specific system.

What is the NSN for 80221C-720?

80221C-720 is cataloged in the U.S. Government catalog under NSN 5310-01-657-0433. This indicates validated use in U.S. government and defense supply chains.

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80221C-720 — NUT,PLAIN,EXTENDED WASHER,DOUBLE

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