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21851 FIND 27 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

21851 FIND 27: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include thread_class: 3A A, end_item_identification: VALVE ASSEMBLY NUMBER 2, nominal_thread_diameter: 0.375 INCHES IN, thread_quantity_per_inch: 24, thread_series_designator: UNIFIED NATIONAL JOINT FINE (UNJF), part_name_assigned_by_controlling_agency: BOLT,INTRNL,WRENCH,0.375-24UNJF-3A X 2.125 A. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-592-6897, 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
21851 FIND 27
NSN: 5306-01-592-6897
FSC: 5306 — Bolts
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
thread_class3A A
end_item_identificationVALVE ASSEMBLY NUMBER 2
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
part_name_assigned_by_controlling_agencyBOLT,INTRNL,WRENCH,0.375-24UNJF-3A X 2.125 A
NSN5306-01-592-6897
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 21851 FIND 27 · 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: 0.375 INCHES IN
•
THREAD CLASS: 3A A
•
THREAD QUANTITY PER INCH: 24
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF)
TECHNICAL CHARACTERISTICS
NOMINAL THREAD DIAMETER0.375 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT,INTRNL,WRENCH,0.375-24UNJF-3A X 2.125 A
THREAD CLASS3A A
END ITEM IDENTIFICATIONVALVE ASSEMBLY NUMBER 2
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21851 FIND 27?
21851 FIND 27 is a BOLT,INTERNAL WRENCHING.
What is the NSN for 21851 FIND 27?
21851 FIND 27 is cataloged in the U.S. Government catalog under NSN 5306-01-592-6897. 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.