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8442C21H01 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8442C21H01: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, shank_length: 0.344 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.150 INCHES NOMINAL IN, overall_length: 0.940 INCHES NOMINAL IN, shank_diameter: 0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-442-6076, 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
8442C21H01
NSN: 5315-01-442-6076
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 04804 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
shank_length0.344 INCHES NOMINAL IN
thread_class2A A
thread_length0.150 INCHES NOMINAL IN
overall_length0.940 INCHES NOMINAL IN
shank_diameter0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN
first_end_styleSQUARE
second_end_styleCHAMFERED
style_designatorSHOULDER
thread_directionRIGHT-HAND
shoulder_diameter0.312 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
NSN5315-01-442-6076
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8442C21H01 · 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: 0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN
•
SECOND SHANK DIAMETER: 0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN
•
FIRST END LOCATION: UNTHREADED END
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35, TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.150 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARE
•
SHANK LENGTH: 0.344 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDER
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN
SECOND SHANK DIAMETER0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN
FIRST END LOCATIONUNTHREADED END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35, TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.150 INCHES NOMINAL IN
FIRST END STYLESQUARE
SHANK LENGTH0.344 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
OVERALL LENGTH0.940 INCHES NOMINAL IN
SECOND END TAPER LENGTH0.219 INCHES NOMINAL IN
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
1347H47-19Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8442C21H01?
8442C21H01 is a PIN,SHOULDER,HEADLESS.
What parts can replace 8442C21H01?
There is 1 known substitute for 8442C21H01: 1347H47-19. Substitute compatibility should be verified for your specific system.
What is the NSN for 8442C21H01?
8442C21H01 is cataloged in the U.S. Government catalog under NSN 5315-01-442-6076. 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.