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A1-05-0432 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A1-05-0432: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2011 OVERALL, head_style: KNURLED NO. 4, head_height: 0.173 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN, point_style: FLAT, thread_class: 2A A, head_diameter: 0.312 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-196-3860, 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
A1-05-0432
NSN: 5305-01-196-3860
FSC: 5305 — Screws
CAGE: 18560 — ACR ELECTRONICS, INC. DBA ACR ELECTRONICS INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2011 OVERALL
head_styleKNURLED NO. 4
head_height0.173 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
point_styleFLAT
thread_class2A A
head_diameter0.312 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
thread_length0.240 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
fastener_length0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.138 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-196-3860
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A1-05-0432 · 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
•
HEAD HEIGHT: 0.173 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.240 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A225/38 T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: KNURLED NO. 4
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: FLAT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.173 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
FASTENER LENGTH0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
THREAD LENGTH0.240 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A225/38 T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEKNURLED NO. 4
THREAD DIRECTIONRIGHT-HAND
POINT STYLEFLAT
THREAD CLASS2A A
THREAD QUANTITY PER INCH32
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 1
7124A22Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 A1-05-0432?
A1-05-0432 is a THUMBSCREW.
What parts can replace A1-05-0432?
There is 1 known substitute for A1-05-0432: 7124A22. Substitute compatibility should be verified for your specific system.
What is the NSN for A1-05-0432?
A1-05-0432 is cataloged in the U.S. Government catalog under NSN 5305-01-196-3860. 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.