PartsTable
Technical Data Sheet
Download PDF

21520722 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

21520722: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include special_features: FUEL PUMP CONTROL SHAFT AND LEVERS, SET SCREW, 1/4-20 X 1/4 IN.,SOCKET HEAD IN, end_item_identification: ALCO 251 MARINE DIESEL ENG., nominal_thread_diameter: 0.250 INCHES IN, thread_quantity_per_inch: 20, part_name_assigned_by_controlling_agency: SET SCREW,RETAINER DOG TO SHAFT. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-470-1804, 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
21520722
NSN: 5305-01-470-1804
FSC: 5305 — Screws
CAGE: 7PZX0 — FAIRBANKS MORSE, LLC (USA)
SPECIFICATIONS
special_featuresFUEL PUMP CONTROL SHAFT AND LEVERS, SET SCREW, 1/4-20 X 1/4 IN.,SOCKET HEAD IN
end_item_identificationALCO 251 MARINE DIESEL ENG.
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
part_name_assigned_by_controlling_agencySET SCREW,RETAINER DOG TO SHAFT
NSN5305-01-470-1804
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 21520722 · 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
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS
NOMINAL THREAD DIAMETER0.250 INCHES IN
SPECIAL FEATURESFUEL PUMP CONTROL SHAFT AND LEVERS, SET SCREW, 1/4-20 X 1/4 IN.,SOCKET HEAD IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSET SCREW,RETAINER DOG TO SHAFT
END ITEM IDENTIFICATIONALCO 251 MARINE DIESEL ENG.
THREAD QUANTITY PER INCH20
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 21520722?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 21520722?
21520722 is a SETSCREW.
What is the NSN for 21520722?
21520722 is cataloged in the U.S. Government catalog under NSN 5305-01-470-1804. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 21520722