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AN507-632R28 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

AN507-632R28: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.249 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN, thread_length: 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN, screw_material: STEEL OR STEEL COMP 1010, fastener_length: 1.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-144-3959, 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
AN507-632R28
NSN: 5305-00-144-3959
FSC: 5305 — Screws
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.249 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
thread_length1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
screw_materialSTEEL OR STEEL COMP 1010
fastener_length1.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.138 INCHES IN
screw_surface_treatmentCADMIUM
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
NSN5305-00-144-3959
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN507-632R28 · 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 SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 1.750 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
•
THREAD LENGTH: 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL OR STEEL COMP 1010
TECHNICAL CHARACTERISTICS
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH1.750 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
THREAD LENGTH1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL OR STEEL COMP 1010
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH LBS
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SUBSTITUTES & CROSS-REFERENCES 2
MS24693-38Reference document
Same NSN cross-reference
Reference document — Secondary reference
FFS92ANDTYPE3ANDSTYLE3Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AN507-632R28?
AN507-632R28 is a SCREW,MACHINE.
What parts can replace AN507-632R28?
There are 2 known substitutes for AN507-632R28: MS24693-38, FFS92ANDTYPE3ANDSTYLE3. Substitute compatibility should be verified for your specific system.
What is the NSN for AN507-632R28?
AN507-632R28 is cataloged in the U.S. Government catalog under NSN 5305-00-144-3959. 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.