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Technical Data Sheet
PartsTable / MRO / 21154
21154 ✓ Verified by PartsTable
Legrand · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
SAS cables have specific lane counts: 4i (internal) or 4e (external) Cable length matters — too short won't reach, too long creates clutter
Verify connector type on BOTH ends — many SAS cables are asymmetric
PRODUCT OVERVIEW

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include material: STEEL COMP 321 BAND, body_style: TUBE TYPE, case_style: SQUARE, seal_width: 0.359 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, overall_length: 1.250 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 5998-00-567-9442, 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→ 21154
NSN: 5998-00-567-9442
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 00638 — TRIO LABORATORIES INC (USA)
SPECIFICATIONS
materialSTEEL COMP 321 BAND
body_styleTUBE TYPE
case_styleSQUARE
seal_width0.359 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
overall_length1.250 INCHES NOMINAL IN
mounting_methodTERMINAL AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating300.0 KILOHERTZ NOMINAL SINGLE COMPONENT
outside_diameter2.254 INCHES NOMINAL IN
overall_diameter0.250 INCHES NOMINAL IN
special_featuresINAVY) VALVE ASSEMBLY SIZE 1
style_designatorOFFSET MOUNT
NSN5998-00-567-9442
COMPONENT DIAGRAM
CONN A SFF-8482 CONN B SFF-8087 LENGTH: SAS CABLE ASSEMBLY | SFF-8482 to SFF-8087 Cable length: | SAS | Shielded TITLE CABLE ASSY PN 21154 MFR Legrand VALVE,LINEAR,DIRECTIONAL CONTROL
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYFSC APPLICATION DATA:RADAR SET,JETDS,TYPE NO. AN/TPS43D MOD
SPECIAL FEATURESBOARD MTG 1,CAPACITOR 6,SEMICONDUCTOR DEVICE 18
PART NAME ASSIGNED BY CONTROLLING AGENCYFSC APPLICATION DATA:RADAR SET,JETDS,TYPE NO. AN/TPS43D MOD
SPECIAL FEATURESBOARD MTG 1,CAPACITOR 6,SEMICONDUCTOR DEVICE 18
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
21154Interchangeable
interchangeable cross-reference
interchangeable
50210Interchangeable
interchangeable cross-reference
interchangeable
322125Interchangeable
interchangeable cross-reference
interchangeable
M175Interchangeable
interchangeable cross-reference
interchangeable
B208552Interchangeable
interchangeable cross-reference
interchangeable
313-150Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21154?
21154 is a VALVE,LINEAR,DIRECTIONAL CONTROL manufactured by Legrand. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21154?
There are 13 known substitutes for 21154: 21154, 50210, 322125 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21154?
21154 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-00-567-9442. 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