PartsTable
Technical Data Sheet

274639 — Technical Data Sheet

✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The YOKE AND BALL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-198-6691, 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
274639
NSN: 5310-00-198-6691
FSC: 5310
CAGE: 89346 — NAVISTAR INTL CORP TRUCK BR OHIO PLANT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
hardness_rating26.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.922 INCHES MINIMUM AND 0.939 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-00-198-6691
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 274639 · 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
•
THREAD CLASS: 2B
•
NUT STYLE: HEXAGON
•
NUT HEIGHT: 0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
MATERIAL DOCUMENT AND CLASSIFICATION: GM 301M GRADE C,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
THREAD QUANTITY PER INCH: 18
TECHNICAL CHARACTERISTICS
THREAD CLASS2B
NUT STYLEHEXAGON
NUT HEIGHT0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
MATERIAL DOCUMENT AND CLASSIFICATIONGM 301M GRADE C,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.625 INCHES IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
THREAD QUANTITY PER INCH18
BEARING SURFACE TYPECHAMFERED
THREAD SERIESUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
6HP5NSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
29KP568InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9290943InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
H60600InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
60600InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B8329InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 274639?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 274639?
274639 is a YOKE AND BALL.
What parts can replace 274639?
There are 10 known substitutes for 274639: 6HP5NS, 29KP568, 9290943 and 7 more. Substitute compatibility should be verified for your specific system.
Is 274639 still available?
274639 is currently cancelled.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 274639