PartsTable
Technical Data Sheet
221979 ✓ Verified by PartsTable
DELL · 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

- Download video through PC and immediately playback on TV<br>- Direct access to TV for immediate playback of movies, music or photos - works without computer<br>- Navigate through your media with the remote control<br>- Fast S-ATA Harddisk<br>- Video Up-scaling to 1080i HDTV resolution<br>- HDMI, Scart, component video and digital audio output This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-022-1979, 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
221979
NSN: 5306-00-022-1979
FSC: 5306
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 1035 OVERALL
head_styleHEXAGON
head_height0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
thread_class2A A
thread_length0.618 INCHES MINIMUM AND 0.718 INCHES MAXIMUM IN
fastener_length0.718 INCHES MINIMUM AND 0.782 INCHES MAXIMUM IN
hardness_rating96.0 ROCKWELL B MINIMUM AND 104.0 ROCKWELL B MAXIMUM OVERALL
locking_featureDISTORTIONS BEARING SURFACE OF HEAD
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentCADMIUM OR ZINC OVERALL
width_between_flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
NSN5306-00-022-1979
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 221979 · DELL ⚠ 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 DIRECTION: RIGHT-HAND
FASTENER LENGTH: 0.718 INCHES MINIMUM AND 0.782 INCHES MAXIMUM IN
HEAD STYLE: HEXAGON
MINIMUM YIELD STRENGTH: 85000 POUNDS PER SQUARE INCH LBS
THREAD SERIES DESIGNATOR: UNF
THREAD QUANTITY PER INCH: 20
MINIMUM TENSILE STRENGTH: 95000 POUNDS PER SQUARE INCH LBS
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.718 INCHES MINIMUM AND 0.782 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
MINIMUM YIELD STRENGTH85000 POUNDS PER SQUARE INCH LBS
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH20
MINIMUM TENSILE STRENGTH95000 POUNDS PER SQUARE INCH LBS
THREAD CLASS2A A
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
FEATURES PROVIDEDFINISHED HEAD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
221979NInterchangeable
interchangeable cross-reference
interchangeable
464-F-04Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-45911Interchangeable
interchangeable cross-reference
interchangeable
MS35763-1064Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 221979?
221979 is a SLEEVE,COMPRESSION,TUBE-HOSE FIT manufactured by DELL.
What parts can replace 221979?
There are 4 known substitutes for 221979: 221979N, 464-F-04, MIL-F-45911 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 221979?
221979 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-022-1979. This indicates validated use in U.S. government and defense supply chains.
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