R398P2 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

R398P2: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: DOUBLE HEXAGON, temp_rating: 1200.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.328 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-007-0254, 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

R398P2

NSN: 5310-00-007-0254
FSC: 5310 — Nuts and Washers
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
nut_style	DOUBLE HEXAGON
temp_rating	1200.0 FAHRENHEIT NOMINAL DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.328 INCHES MAXIMUM IN
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
precious_material	SILVER
width_across_flats	0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
nominal_thread_size	0.250 INCHES IN
washer_outside_diameter	0.440 INCHES MAXIMUM IN
NSN	5310-00-007-0254

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.440 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

PRECIOUS MATERIAL: SILVER

•

TEMP RATING: 1200.0 FAHRENHEIT NOMINAL DEGF

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.328 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.440 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
PRECIOUS MATERIAL	SILVER
TEMP RATING	1200.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.250 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN

SUBSTITUTES & CROSS-REFERENCES 6

H33-4Reference document

Same NSN cross-reference

Reference document — Secondary reference

LH3417-048Reference document

Same NSN cross-reference

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

R398P2EReference document

Same NSN cross-reference

Reference document — Secondary reference

VN405B048Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

R398P2CReference document

Same NSN cross-reference

Reference document — Secondary reference

R398P2AReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is R398P2?

R398P2 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace R398P2?

There are 6 known substitutes for R398P2: H33-4, LH3417-048, R398P2E and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for R398P2?

R398P2 is cataloged in the U.S. Government catalog under NSN 5310-00-007-0254. This indicates validated use in U.S. government and defense supply chains.

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R398P2 — NUT,SELF-LOCKING,EXTENDED WASHER

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