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157678 — TABWASHER,RETAINING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

157678: TABWASHER,RETAINING.

The TABWASHER,RETAINING is a the manufacturer industrial component. Key specifications include shape: PALLET, special_features: IMPRINTS EQUALS SIGN, end_item_identification: TELETYPE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-097-4338, 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
157678
NSN: 5310-00-097-4338
NIINs: 000974338, 005452871
FSC: 5310 — Nuts and Washers
CAGE: 79043 — THE UNITED TOOL & DIE COMPANY (USA)
SPECIFICATIONS
shapePALLET
special_featuresIMPRINTS EQUALS SIGN
end_item_identificationTELETYPE
NSN5310-00-097-4338
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 157678 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL AMS 5040 OR AMS 5042,4.002 IN. NOM OD,3.940 IN. NOM ID,0.615 IN. NOM LG,28 TABS EQUALLY SPACED 0.250 IN. W AND 5 TABS 0.370 IN. W ON ID EQUALLY SPACED IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL AMS 5040 OR AMS 5042,4.002 IN. NOM OD,3.940 IN. NOM ID,0.615 IN. NOM LG,28 TABS EQUALLY SPACED 0.250 IN. W AND 5 TABS 0.370 IN. W ON ID EQUALLY SPACED IN
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESINTERGAL PART OF THE 4.5 BEARING PACKAGE. ENSURES PROPER ALIGNMENT OF THE BEARING RING AND ASSOCIATED HARDWARE. FITS ALL TF33 VARIANTS. FAILURE OF THIS PART CAN LEAD TO CATASTOPHIC DAMAGE OF ENGINE.
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 157678?
157678 is a TABWASHER,RETAINING.
What is the NSN for 157678?
157678 is cataloged in the U.S. Government catalog under NSN 5310-00-097-4338. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.