394188 — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

394188: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN, head_height: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN, grip_diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN, thread_length: 0.905 INCHES MINIMUM AND 0.925 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-822-6941, 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

394188

NSN: 5306-00-822-6941
FSC: 5306 — Bolts
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	HEXAGON
grip_length	0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
head_height	0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
grip_diameter	0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
thread_length	0.905 INCHES MINIMUM AND 0.925 INCHES MAXIMUM IN
surface_finish	32.0 MICROINCHES THREADS
fastener_length	0.905 INCHES MINIMUM AND 0.925 INCHES MAXIMUM IN
hardness_rating	30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_direction	RIGHT-HAND
width_between_flats	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
nominal_thread_diameter	0.250 INCHES IN
NSN	5306-00-822-6941

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES THREADS

•

HEAD HEIGHT: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.905 INCHES MINIMUM AND 0.925 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.905 INCHES MINIMUM AND 0.925 INCHES MAXIMUM IN

•

HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	63.0 MICROINCHES GRIP
SURFACE FINISH	125.0 MICROINCHES TOP OF HEAD
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT	0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
FASTENER LENGTH	0.905 INCHES MINIMUM AND 0.925 INCHES MAXIMUM IN
THREAD LENGTH	0.905 INCHES MINIMUM AND 0.925 INCHES MAXIMUM IN
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
SHANK UNTHREADED HOLE DIAMETER	0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
CRITICALITY CODE JUSTIFICATION	FEAT

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: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

Ready to buy 394188?

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 394188?

394188 is a BOLT,CLOSE TOLERANCE.

What is the NSN for 394188?

394188 is cataloged in the U.S. Government catalog under NSN 5306-00-822-6941. This indicates validated use in U.S. government and defense supply chains.

Community Feedback

394188 — BOLT,CLOSE TOLERANCE

Request a Quote — 394188