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C4BM1551-1 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

C4BM1551-1: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, shank_length: 0.6500 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.500 INCHES NOMINAL IN, overall_length: 1.4000 INCHES NOMINAL IN, shank_diameter: 0.3120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-439-8599, 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
C4BM1551-1
NSN: 5315-00-439-8599
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 71867 — DE HAVILLAND AIRCRAFT OF CANADA LIMITED (CAN)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
shank_length0.6500 INCHES NOMINAL IN
thread_class2A A
thread_length0.500 INCHES NOMINAL IN
overall_length1.4000 INCHES NOMINAL IN
shank_diameter0.3120 INCHES NOMINAL IN
first_end_styleCHAMFERED
second_end_styleCHAMFERED
special_featuresUNTHREADED SHANK END 0.060 RADIUS AND THREADED,SHANK END FLATTENED TO 0.180 IN. W FOR 0.150 IN. LG IN
style_designatorSHOULDER
thread_directionRIGHT-HAND
shoulder_diameter0.500 INCHES NOMINAL IN
NSN5315-00-439-8599
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C4BM1551-1 · 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
•
SHANK DIAMETER: 0.3120 INCHES NOMINAL IN
•
SECOND SHANK DIAMETER: 0.3120 INCHES NOMINAL IN
•
FIRST END TAPER LENGTH: 0.030 INCHES NOMINAL IN
•
FIRST END LOCATION: THREADED END
•
SECOND END TAPER ANGLE: 15.0 DEGREES NOMINAL
•
THREAD LENGTH: 0.500 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
SHANK LENGTH: 0.6500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.3120 INCHES NOMINAL IN
SECOND SHANK DIAMETER0.3120 INCHES NOMINAL IN
FIRST END TAPER LENGTH0.030 INCHES NOMINAL IN
FIRST END LOCATIONTHREADED END
SECOND END TAPER ANGLE15.0 DEGREES NOMINAL
THREAD LENGTH0.500 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
SHANK LENGTH0.6500 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONSTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 1
1560AC1-058Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C4BM1551-1?
C4BM1551-1 is a PIN,SHOULDER,HEADLESS.
What parts can replace C4BM1551-1?
There is 1 known substitute for C4BM1551-1: 1560AC1-058. Substitute compatibility should be verified for your specific system.
What is the NSN for C4BM1551-1?
C4BM1551-1 is cataloged in the U.S. Government catalog under NSN 5315-00-439-8599. This indicates validated use in U.S. government and defense supply chains.
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