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Technical Data Sheet
PartsTable / MRO / 37-635
37-635 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: RUBBER SYNTHETIC COVER, body_width: 5.000 INCHES NOMINAL IN, body_height: 2.000 INCHES NOMINAL IN, body_length: 22.250 INCHES NOMINAL IN, terminal_type: DOUBLE SCREW, inclosure_type: UNINCLOSED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-566-1258, 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→ 37-635
NSN: 4720-00-566-1258
FSC: 4720
CAGE: 10695 — TAYLOR-DUNN CORPORATION DBA METRO CROWN INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC COVER
body_width5.000 INCHES NOMINAL IN
body_height2.000 INCHES NOMINAL IN
body_length22.250 INCHES NOMINAL IN
terminal_typeDOUBLE SCREW
inclosure_typeUNINCLOSED
terminal_width2.000 INCHES NOMINAL IN
wall_thickness0.125 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
working_length20.000 INCHES NOMINAL IN
inside_diameter1.440 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN
terminal_length1.000 INCHES NOMINAL IN
first_arm_length1.500 INCHES NOMINAL IN
NSN4720-00-566-1258
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 37-635 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SECOND ARM LENGTH: 1.500 INCHES NOMINAL IN
•
FIRST ARM LENGTH: 1.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE J20R5,CLASS SC ASSN STD SINGLE MATERIAL RESPONSE COVER
•
WORKING LENGTH: 20.000 INCHES NOMINAL IN
•
MATERIAL: RUBBER OVERALL
•
STYLE DESIGNATOR: STRAIGHT CORRUGATED
TECHNICAL CHARACTERISTICS (FLIS)
SECOND ARM LENGTH1.500 INCHES NOMINAL IN
FIRST ARM LENGTH1.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J20R5,CLASS SC ASSN STD SINGLE MATERIAL RESPONSE COVER
WORKING LENGTH20.000 INCHES NOMINAL IN
MATERIALRUBBER OVERALL
STYLE DESIGNATORSTRAIGHT CORRUGATED
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 20R5,CLASS SC ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER SYNTHETIC COVER
WALL THICKNESS0.125 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
INSIDE DIAMETER1.440 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
8118-1Interchangeable
interchangeable cross-reference
interchangeable
0092129Interchangeable
interchangeable cross-reference
interchangeable
10000C051-009Interchangeable
interchangeable cross-reference
interchangeable
10031257-101Interchangeable
interchangeable cross-reference
interchangeable
KAN808Interchangeable
interchangeable cross-reference
interchangeable
45216Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37-635?
37-635 is a RESISTOR,FIXED,WIRE WOUND,INDUCT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 37-635?
There are 31 known substitutes for 37-635: 8118-1, 0092129, 10000C051-009 and 28 more. Substitute compatibility should be verified for your specific system.
Is 37-635 still available?
37-635 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: July 2026