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9978447 — STUD,SHOULDERED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

9978447: STUD,SHOULDERED.

The STUD,SHOULDERED is a the manufacturer industrial component. Key specifications include material: COPPER, thread_class: 2A STUD THREAD A, thread_length: 0.690 INCHES NOMINAL NUT THREAD IN, overall_length: 1.640 INCHES NOMINAL IN, shoulder_length: 0.490 INCHES NOMINAL IN, style_designator: SHOULDERED. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-022-9760, 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
9978447
NSN: 5307-00-022-9760
FSC: 5307 — Studs
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialCOPPER
thread_class2A STUD THREAD A
thread_length0.690 INCHES NOMINAL NUT THREAD IN
overall_length1.640 INCHES NOMINAL IN
shoulder_length0.490 INCHES NOMINAL IN
style_designatorSHOULDERED
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentTIN OVERALL
nominal_thread_size0.312 INCHES STUD THREAD IN
distance_across_flats0.625 INCHES NOMINAL IN
thread_quantity_per_inch24 NUT THREAD
thread_series_designatorUNF STUD THREAD
NSN5307-00-022-9760
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 9978447 · 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 LENGTH: 0.690 INCHES NOMINAL NUT THREAD IN
•
STYLE DESIGNATOR: SHOULDERED
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.312 INCHES NUT THREAD IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.690 INCHES NOMINAL NUT THREAD IN
THREAD LENGTH0.460 INCHES NOMINAL STUD THREAD IN
STYLE DESIGNATORSHOULDERED
OVERALL LENGTH1.640 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.312 INCHES NUT THREAD IN
NOMINAL THREAD SIZE0.312 INCHES STUD THREAD IN
SURFACE TREATMENTTIN OVERALL
THREAD CLASS2A STUD THREAD A
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES 1
22826-1085Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9978447?
9978447 is a STUD,SHOULDERED.
What parts can replace 9978447?
There is 1 known substitute for 9978447: 22826-1085. Substitute compatibility should be verified for your specific system.
What is the NSN for 9978447?
9978447 is cataloged in the U.S. Government catalog under NSN 5307-00-022-9760. 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.