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22399R1 — Technical Data Sheet

✓ Verified by PartsTable
— · 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

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.875 INCHES MAXIMUM IN, fastener_length: 0.875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 5305-00-269-3235, 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
22399R1
NSN: 5305-00-269-3235
FSC: 5305
CAGE: 55820 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
thread_class2A A
thread_length0.875 INCHES MAXIMUM IN
fastener_length0.875 INCHES NOMINAL IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
minimum_tensile_strength150000 POUNDS PER SQUARE INCH LBS
NSN5305-00-269-3235
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 22399R1 · 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
•
MATERIAL: STEEL OVERALL
•
THREAD CLASS: 2A A
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MINIMUM YIELD STRENGTH: 120000 POUNDS PER SQUARE INCH LBS
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
•
WIDTH BETWEEN FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MATERIALSTEEL OVERALL
THREAD CLASS2A A
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MINIMUM YIELD STRENGTH120000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
THREAD LENGTH0.875 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
035167InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0035167InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0035167-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
TT703InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
65C35442-9InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
00004-ST111InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 22399R1?
22399R1 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 22399R1?
There are 17 known substitutes for 22399R1: 035167, 0035167, 0035167-6 and 14 more. Substitute compatibility should be verified for your specific system.
Is 22399R1 still available?
22399R1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026