PartsTable
Technical Data Sheet
Download PDF

42263 — REACTOR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

42263: REACTOR.

The REACTOR is a the manufacturer industrial component. Key specifications include material: STEEL, head_style: HEXAGON, head_height: 0.250 INCHES NOMINAL IN, temp_rating: 875.0 FAHRENHEIT NOMINAL DEGF, thread_class: 2A A, thread_length: 0.438 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-298-1423, 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
42263
NSN: 5305-00-298-1423
NIINs: 002981423, 003445276, 011459724, 012810441
FSC: 5305 — Screws
CAGE: 24930 — L3HARRIS TECHNOLOGIES, INC DIV SPACE & AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL
head_styleHEXAGON
head_height0.250 INCHES NOMINAL IN
temp_rating875.0 FAHRENHEIT NOMINAL DEGF
thread_class2A A
thread_length0.438 INCHES MINIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.750 INCHES NOMINAL IN
pressure_rating600.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
shoulder_length0.247 INCHES NOMINAL FIRST SHOULDER IN
surface_treatmentPASSIVATE OVERALL
width_between_flats0.438 INCHES NOMINAL IN
NSN5305-00-298-1423
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 42263 · 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
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.247 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 0.438 INCHES MINIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: HEXAGON
•
WIDTH BETWEEN FLATS: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH0.750 INCHES NOMINAL IN
SHOULDER LENGTH0.247 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH0.438 INCHES MINIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEHEXAGON
WIDTH BETWEEN FLATS0.438 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A A
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 42263?
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 42263?
42263 is a REACTOR.
What is the NSN for 42263?
42263 is cataloged in the U.S. Government catalog under NSN 5305-00-298-1423. 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 — 42263

✓ 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.