EWN22-12 — NUT,SELF-LOCKING,DOUBLE HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

EWN22-12: NUT,SELF-LOCKING,DOUBLE HEXAGON.

NUT,SELF-LOCKING,DOUBLE HEXAGON. Key specifications include material: STEEL COMP 8630 OR STEEL COMP 8740 OVERALL, nut_style: DOUBLE HEXAGON, nut_height: 1.005 INCHES NOMINAL IN, temp_rating: 550.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-558-7526, 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

EWN22-12

NSN: 5310-00-558-7526
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
nut_style	DOUBLE HEXAGON
nut_height	1.005 INCHES NOMINAL IN
temp_rating	550.0 FAHRENHEIT NOMINAL DEGF
thread_class	3B
thread_series	UNF
hardness_rating	27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OVERALL
width_across_flats	1.508 INCHES NOMINAL IN
nominal_thread_size	0.750 INCHES IN
NSN	5310-00-558-7526

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 1.508 INCHES NOMINAL IN

•

THREAD SERIES: UNF

•

TEMP RATING: 550.0 FAHRENHEIT NOMINAL DEGF

•

HARDNESS RATING: 27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6280 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.750 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	1.508 INCHES NOMINAL IN
THREAD SERIES	UNF
TEMP RATING	550.0 FAHRENHEIT NOMINAL DEGF
HARDNESS RATING	27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6280 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.750 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	1.005 INCHES NOMINAL IN
SURFACE TREATMENT	CADMIUM OVERALL

SUBSTITUTES & CROSS-REFERENCES 2

5191382Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

EWN22-1216Reference 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 EWN22-12?

EWN22-12 is a NUT,SELF-LOCKING,DOUBLE HEXAGON.

What parts can replace EWN22-12?

There are 2 known substitutes for EWN22-12: 5191382, EWN22-1216. Substitute compatibility should be verified for your specific system.

What is the NSN for EWN22-12?

EWN22-12 is cataloged in the U.S. Government catalog under NSN 5310-00-558-7526. This indicates validated use in U.S. government and defense supply chains.

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EWN22-12 — NUT,SELF-LOCKING,DOUBLE HEXAGON

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