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124-5563779 PC 91 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

124-5563779 PC 91: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include thread_class: 2A A, thread_length: 1.000 INCHES NOMINAL IN, screw_material: ZINC ALLOY, special_features: FLAT HEAD, thread_direction: RIGHT-HAND, end_item_identification: HATCH. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-480-6632, 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
124-5563779 PC 91
NSN: 5305-01-480-6632
FSC: 5305 — Screws
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
thread_class2A A
thread_length1.000 INCHES NOMINAL IN
screw_materialZINC ALLOY
special_featuresFLAT HEAD
thread_directionRIGHT-HAND
end_item_identificationHATCH
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
screw_material_document_and_classificationFF-S-92B FED SPEC SINGLE MATERIAL RESPONSE
NSN5305-01-480-6632
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 124-5563779 PC 91 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: FF-S-92B FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 1.000 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: ZINC ALLOY
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONFF-S-92B FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH1.000 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALZINC ALLOY
SPECIAL FEATURESFLAT HEAD
THREAD CLASS2A A
END ITEM IDENTIFICATIONHATCH
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
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 124-5563779 PC 91?
124-5563779 PC 91 is a SCREW,MACHINE.
What is the NSN for 124-5563779 PC 91?
124-5563779 PC 91 is cataloged in the U.S. Government catalog under NSN 5305-01-480-6632. 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.