SS5089 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

SS5089: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL OVERALL, nut_style: DOUBLE HEXAGON, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.385 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-536-2136, 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

SS5089

NSN: 5310-01-536-2136
NIINs: 015362136, 016204333, 017179468
FSC: 5310 — Nuts and Washers
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_style	DOUBLE HEXAGON
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.385 INCHES MAXIMUM IN
hardness_rating	40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
locking_feature	FREE-RUNNING ALL METAL DESIGN
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OVERALL
width_across_flats	0.362 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
nominal_thread_size	0.3125 INCHES IN
washer_outside_diameter	0.568 INCHES MAXIMUM IN
NSN	5310-01-536-2136

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.458 INCHES NOMINAL IN

•

WIDTH ACROSS FLATS: 0.035 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.250 INCHES IN

•

SURFACE TREATMENT: CADMIUM OVERALL

•

NUT STYLE: DOUBLE HEXAGON

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.328 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER	0.458 INCHES NOMINAL IN
WIDTH ACROSS FLATS	0.035 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.250 INCHES IN
SURFACE TREATMENT	CADMIUM OVERALL
NUT STYLE	DOUBLE HEXAGON
THREAD CLASS	3B
THREAD QUANTITY PER INCH	28

SUBSTITUTES & CROSS-REFERENCES 2

5310PL2210477Reference document

Same NSN cross-reference

Reference document — Informative reference only

SS5089-04Same 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 SS5089?

SS5089 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace SS5089?

There are 2 known substitutes for SS5089: 5310PL2210477, SS5089-04. Substitute compatibility should be verified for your specific system.

What is the NSN for SS5089?

SS5089 is cataloged in the U.S. Government catalog under NSN 5310-01-536-2136. This indicates validated use in U.S. government and defense supply chains.

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SS5089 — NUT,SELF-LOCKING,EXTENDED WASHER

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