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143684 — RAIL,BALL,BRIDGE TABLE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

143684: RAIL,BALL,BRIDGE TABLE.

The RAIL,BALL,BRIDGE TABLE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5305-00-038-2376, 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
143684
NSN: 5305-00-038-2376
NIINs: 000382376, 010255944
FSC: 5305 — Screws
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL,O/A DIM. 22.000 IN. LG,0.500 IN. THK,1.120 IN. W,RAISED LONGITUDINAL RIDGE 0.187 IN. W BY 0.044 IN. MIN TO 0.049 IN. MAX H,HARDENED RIDGE SURFACE IN
NSN5305-00-038-2376
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 143684 · 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: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
THREAD LENGTH0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
SCREW MATERIALSTEEL
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 143684?
143684 is a RAIL,BALL,BRIDGE TABLE.
What is the NSN for 143684?
143684 is cataloged in the U.S. Government catalog under NSN 5305-00-038-2376. 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.