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A25-1C — A25-1C

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A25-1C: A25-1C.

The A25-1C is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN, thread_length: 0.450 INCHES MINIMUM IN, screw_material: STEEL, fastener_length: 0.550 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-655-9320, 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
A25-1C
NSN: 5305-00-655-9320
NIINs: 006559320, 011254119
FSC: 5305 — Screws
CAGE: K7766 — BSI STANDARDS LIMITED (GBR)
SPECIFICATIONS
head_styleHEXAGON
head_height0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
thread_length0.450 INCHES MINIMUM IN
screw_materialSTEEL
fastener_length0.550 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.319 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
nominal_thread_diameter0.185 INCHES IN
screw_surface_treatmentCADMIUM
thread_quantity_per_inch31.3
thread_series_designatorWHITWORTH
NSN5305-00-655-9320
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A25-1C · 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: 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 0.550 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.450 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.185 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.319 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH0.550 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
THREAD LENGTH0.450 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.185 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.319 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
SCREW MATERIALSTEEL
THREAD QUANTITY PER INCH31.3
SUBSTITUTES & CROSS-REFERENCES 2
99-9436920Reference document
Same NSN cross-reference
Reference document — Informative reference only
SR172-2Same 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 A25-1C?
A25-1C is a A25-1C.
What parts can replace A25-1C?
There are 2 known substitutes for A25-1C: 99-9436920, SR172-2. Substitute compatibility should be verified for your specific system.
What is the NSN for A25-1C?
A25-1C is cataloged in the U.S. Government catalog under NSN 5305-00-655-9320. This indicates validated use in U.S. government and defense supply chains.
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