PartsTable
Technical Data Sheet
PartsTable / MRO / 220635
220635 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

DUMMY COUPLING,AUTOMOTIVE AIR BR. Key specifications include material: STEEL OVERALL, hole_type: DRILLED, head_style: HEXAGON, head_height: 0.234 INCHES NOMINAL IN, thread_class: 2A A, hole_diameter: 0.070 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-022-0635, 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
MRO→ MRO_GENERAL→ 220635
NSN: 5305-00-022-0635
FSC: 5305
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleHEXAGON
head_height0.234 INCHES NOMINAL IN
thread_class2A A
hole_diameter0.070 INCHES NOMINAL IN
hole_quantity1
thread_length1.000 INCHES MINIMUM IN
fastener_length1.250 INCHES NOMINAL IN
hardness_rating100.0 ROCKWELL B MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats0.562 INCHES NOMINAL IN
NSN5305-00-022-0635
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 220635 · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 10P STYLE AND 2 GRADE
•
WIDTH BETWEEN FLATS: 0.562 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.070 INCHES NOMINAL IN
•
DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY HOLE TYPE AND QUANTITY
•
HARDNESS RATING: 100.0 ROCKWELL B MAXIMUM OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE CONFIGURATION STYLE: HEXAGON FLATS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 2 GRADE
WIDTH BETWEEN FLATS0.562 INCHES NOMINAL IN
HOLE DIAMETER0.070 INCHES NOMINAL IN
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY HOLE TYPE AND QUANTITY
HARDNESS RATING100.0 ROCKWELL B MAXIMUM OVERALL
MATERIALSTEEL OVERALL
HOLE CONFIGURATION STYLEHEXAGON FLATS
THREAD QUANTITY PER INCH16
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A297356Interchangeable
interchangeable cross-reference
interchangeable
128851BInterchangeable
interchangeable cross-reference
interchangeable
213607Interchangeable
interchangeable cross-reference
interchangeable
2CC447Interchangeable
interchangeable cross-reference
interchangeable
2199005Interchangeable
interchangeable cross-reference
interchangeable
FFS85TYPE2STYLE10PGRADE2Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 220635?
220635 is a DUMMY COUPLING,AUTOMOTIVE AIR BR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 220635?
There are 6 known substitutes for 220635: A297356, 128851B, 213607 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 220635?
220635 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-022-0635. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026