PartsTable
Technical Data Sheet
56-977 ✓ Verified by PartsTable
Bestway · 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

After 6 years of successful sales of TACENS first computer case Initio, TACENS releases Initio II with the new aesthetics and performance updated and enhanced after these years of experience.<br>TACENS Initio II case, with its shiny-black front panel, has a new clean, elegant and professional design that meets anyone likes. Its high-quality light chassis is completely black for a flawless finish and features an ultra-quiet rear fan 90mm PRO TACENS Aura for maximum cooling with minimum noise.<br><br>- Elegant bright-black front panel.<br>- Full black, light-weight and high-quality spacious chassis.<br>- Ultra-Silent 9 cm Tacens Aura Pro rear fan (12db) with anti-vibration pads.<br>- Front USB 2.0 and audio connectors.<br>- Thermally advantaged design with CPU air duct and PCI-Express ventilation holes.<br>- This model includes an ultra-quiet and high quality 450W TACENS power supply. Complies with all strict EU regulations and includes top-safety electric features and PFC filtering.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-979-7806, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
56-977
NSN: 5305-00-979-7806
FSC: 5305
CAGE: 56540 — ASSOCIATED AIRCRAFT MANUFACTURING & SALES, INC. DBA ASSOCIATED AIRCRAFT MANUFACTURING & SALES INC (USA)
SPECIFICATIONS
end_item_identificationMRTT
part_name_assigned_by_controlling_agencyRETAINER - GREASE, INNER
NSN5305-00-979-7806
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 56-977 · Bestway ⚠ 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
POINT LENGTH: 0.531 INCHES NOMINAL IN
INTERNAL DRIVE STYLE: SLOT
POINT CHAMFER ANGLE: 30.0 DEGREES NOMINAL
POINT STYLE: CONE
THREAD CLASS: 2A A
THREAD LENGTH: 0.500 INCHES MINIMUM IN
FASTENER LENGTH: 1.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
POINT LENGTH0.531 INCHES NOMINAL IN
INTERNAL DRIVE STYLESLOT
SPECIAL FEATURESPOINT TO HAVE A 16 MICROINCH FINISH
POINT CHAMFER ANGLE30.0 DEGREES NOMINAL
POINT STYLECONE
THREAD CLASS2A A
THREAD LENGTH0.500 INCHES MINIMUM IN
FASTENER LENGTH1.031 INCHES NOMINAL IN
POINT DIAMETER0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
6401553Interchangeable
interchangeable cross-reference
interchangeable
57815Interchangeable
interchangeable cross-reference
interchangeable
70564Interchangeable
interchangeable cross-reference
interchangeable
L-40631Interchangeable
interchangeable cross-reference
interchangeable
MULTIGRADE III RC RAPIDInterchangeable
interchangeable cross-reference
interchangeable
COMMERCIAL FILM PROJECTInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 56-977?
56-977 is a SEAL,PLAIN manufactured by Bestway.
What parts can replace 56-977?
There are 9 known substitutes for 56-977: 6401553, 57815, 70564 and 6 more. Substitute compatibility should be verified for your specific system.
Is 56-977 still available?
56-977 is currently cancelled.
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