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SP-387 — PULLEY,GROOVE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

SP-387: PULLEY,GROOVE.

The PULLEY,GROOVE is a the manufacturer industrial component. Key specifications include bearings: INCLUDED, material: PLASTIC BODY, bore_type: STRAIGHT, face_width: 0.219 INCHES NOMINAL IN, bore_length: 0.219 INCHES NOMINAL IN, design_form: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-207-2838, 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
SP-387
NSN: 5305-00-207-2838
NIINs: 002072838, 004222517, 010748244
FSC: 5305 — Screws
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
bearingsINCLUDED
materialPLASTIC BODY
bore_typeSTRAIGHT
face_width0.219 INCHES NOMINAL IN
bore_length0.219 INCHES NOMINAL IN
design_formPLAIN
bearing_typeBALL
bore_featureINCLUDED
groove_depth0.094 INCHES NOMINAL IN
groove_shapeU
groove_width0.050 INCHES NOMINAL IN
bore_diameter0.188 INCHES NOMINAL IN
NSN5305-00-207-2838
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SP-387 · 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
•
EXTENDED WASHER THICKNESS: 0.063 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
POINT LENGTH: 0.084 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.438 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.250 INCHES NOMINAL IN
•
THREAD LENGTH: 0.260 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-994 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.156 INCHES IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.063 INCHES NOMINAL IN
HEAD HEIGHT0.250 INCHES NOMINAL IN
POINT LENGTH0.084 INCHES NOMINAL IN
FASTENER LENGTH0.438 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.250 INCHES NOMINAL IN
THREAD LENGTH0.260 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-994 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.156 INCHES IN
HEAD STYLESQUARE
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SP-387?
SP-387 is a PULLEY,GROOVE.
What is the NSN for SP-387?
SP-387 is cataloged in the U.S. Government catalog under NSN 5305-00-207-2838. 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.