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A55F60554-11 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A55F60554-11: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-12 OVERALL, shank_length: 0.710 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.420 INCHES NOMINAL IN, overall_length: 2.035 INCHES NOMINAL IN, shank_diameter: 0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-371-6040, 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
A55F60554-11
NSN: 5315-01-371-6040
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP XM-12 OVERALL
shank_length0.710 INCHES NOMINAL IN
thread_class3A A
thread_length0.420 INCHES NOMINAL IN
overall_length2.035 INCHES NOMINAL IN
shank_diameter0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN
first_end_styleSQUARE
second_end_styleCHAMFERED
style_designatorSHOULDER
thread_directionRIGHT-HAND
first_end_locationUNTHREADED END
nominal_thread_size0.250 INCHES IN
NSN5315-01-371-6040
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A55F60554-11 · 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: 0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN
•
SECOND SHANK DIAMETER: 0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN
•
FIRST END LOCATION: UNTHREADED END
•
THREAD LENGTH: 0.420 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARE
•
SHANK LENGTH: 0.710 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5659 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN
SECOND SHANK DIAMETER0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN
FIRST END LOCATIONUNTHREADED END
THREAD LENGTH0.420 INCHES NOMINAL IN
FIRST END STYLESQUARE
SHANK LENGTH0.710 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5659 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH2.035 INCHES NOMINAL IN
SECOND END TAPER LENGTH0.325 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A55F60554-11?
A55F60554-11 is a PIN,SHOULDER,HEADLESS.
What is the NSN for A55F60554-11?
A55F60554-11 is cataloged in the U.S. Government catalog under NSN 5315-01-371-6040. 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.