PartsTable
Technical Data Sheet
NASM7839 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include color: BLACK, material: STEEL COMP 302 OR STEEL COMP 430 OR STEEL COMP 431 OVERALL, head_style: HEXAGON, head_height: 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-058-4012, 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
NASM7839
NSN: 5305-00-058-4012
FSC: 5305
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
colorBLACK
materialSTEEL COMP 302 OR STEEL COMP 430 OR STEEL COMP 431 OVERALL
head_styleHEXAGON
head_height0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
hole_diameter0.046 INCHES NOMINAL IN
hole_quantity1
thread_length1.232 INCHES MINIMUM AND 1.311 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length1.296 INCHES MINIMUM AND 1.343 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
NSN5305-00-058-4012
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NASM7839 · 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
THREAD CLASS: 3A A
FASTENER LENGTH: 1.266 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
THREAD SERIES DESIGNATOR: UNF
HEAD STYLE: FLAT COUNTERSUNK
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A A
FASTENER LENGTH1.266 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD SERIES DESIGNATORUNF
HEAD STYLEFLAT COUNTERSUNK
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
SCREW MATERIALSTEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OR STEEL COMP 4140 OR STEEL COMP 4037
THREAD QUANTITY PER INCH28
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AN509-416R20Interchangeable
interchangeable cross-reference
interchangeable
MS24694S107Interchangeable
Same NIIN cross-reference
interchangeable
MS24694-107Interchangeable
Same NIIN cross-reference
interchangeable
MIL-S-7839Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NASM7839?
NASM7839 is a SCREW,MACHINE.
What parts can replace NASM7839?
There are 4 known substitutes for NASM7839: AN509-416R20, MS24694S107, MS24694-107 and 1 more. Substitute compatibility should be verified for your specific system.
Is NASM7839 still available?
NASM7839 is currently cancelled.
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