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121B308H01 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

121B308H01: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, shank_length: 0.750 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.620 INCHES NOMINAL IN, overall_length: 1.500 INCHES NOMINAL IN, shank_diameter: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-318-2133, 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
121B308H01
NSN: 5315-01-318-2133
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 48306 — NORTHROP GRUMMAN SUPPORT SERVICES CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
shank_length0.750 INCHES NOMINAL IN
thread_class2A A
thread_length0.620 INCHES NOMINAL IN
overall_length1.500 INCHES NOMINAL IN
shank_diameter0.312 INCHES NOMINAL IN
first_end_styleCHAMFERED
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
second_end_styleSQUARE
style_designatorSHOULDER
thread_directionRIGHT-HAND
shoulder_diameter0.375 INCHES NOMINAL IN
NSN5315-01-318-2133
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 121B308H01 · 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: 0.312 INCHES NOMINAL IN
•
FIRST END TAPER LENGTH: 0.250 INCHES NOMINAL IN
•
FIRST END LOCATION: CHAMFERED END
•
HOLE ARRANGEMENT STYLE: DRILLED SHANK THREADED PIN
•
THREAD LENGTH: 0.620 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
FIRST HOLE DIAMETER: 0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.312 INCHES NOMINAL IN
FIRST END TAPER LENGTH0.250 INCHES NOMINAL IN
FIRST END LOCATIONCHAMFERED END
HOLE ARRANGEMENT STYLEDRILLED SHANK THREADED PIN
THREAD LENGTH0.620 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
FIRST HOLE DIAMETER0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
SHANK LENGTH0.750 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
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

No substitute or cross-reference records for this part.

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 121B308H01?
121B308H01 is a PIN,SHOULDER,HEADLESS.
What is the NSN for 121B308H01?
121B308H01 is cataloged in the U.S. Government catalog under NSN 5315-01-318-2133. 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.