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1621961 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1621961: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include overall_length: 4.250 INCHES NOMINAL IN, first_end_style: CHAMFERED, second_end_style: SQUARE, style_designator: SHOULDER, shoulder_diameter: 1.250 INCHES NOMINAL IN, first_end_location: SQUARE END. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-447-0481, 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
1621961
NSN: 5315-01-447-0481
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 5X050 — CRYSTEEL MANUFACTURING, INC DBA CRYSTEEL MANUFACTURING INC (USA)
SPECIFICATIONS
overall_length4.250 INCHES NOMINAL IN
first_end_styleCHAMFERED
second_end_styleSQUARE
style_designatorSHOULDER
shoulder_diameter1.250 INCHES NOMINAL IN
first_end_locationSQUARE END
second_shank_length3.251 INCHES NOMINAL IN
second_end_relationship_with_first_endNOT IDENTICAL
NSN5315-01-447-0481
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1621961 · 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
•
FIRST END LOCATION: SQUARE END
•
FIRST END STYLE: CHAMFERED
•
STYLE DESIGNATOR: SHOULDER
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
SHOULDER DIAMETER: 1.250 INCHES NOMINAL IN
•
SECOND SHANK LENGTH: 3.251 INCHES NOMINAL IN
•
SECOND END STYLE: SQUARE
TECHNICAL CHARACTERISTICS
FIRST END LOCATIONSQUARE END
FIRST END STYLECHAMFERED
STYLE DESIGNATORSHOULDER
OVERALL LENGTH4.250 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SHOULDER DIAMETER1.250 INCHES NOMINAL IN
SECOND SHANK LENGTH3.251 INCHES NOMINAL IN
SECOND END STYLESQUARE
SUBSTITUTES & CROSS-REFERENCES 2
CMG/117122Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
117122Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 1621961?
1621961 is a PIN,SHOULDER,HEADLESS.
What parts can replace 1621961?
There are 2 known substitutes for 1621961: CMG/117122, 117122. Substitute compatibility should be verified for your specific system.
What is the NSN for 1621961?
1621961 is cataloged in the U.S. Government catalog under NSN 5315-01-447-0481. This indicates validated use in U.S. government and defense supply chains.
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