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391 — ADAPTER,RADIO FREQUENCY CABLE

✓ Government record, cited
Thule · MRO · MRO_GENERAL
PRODUCT OVERVIEW

391: ADAPTER,RADIO FREQUENCY CABLE.

The ADAPTER,RADIO FREQUENCY CABLE is a Thule cable assembly designed for reliable internal or external connectivity in enterprise server and storage environments. Key specifications include shape: RECTANGULAR, material: PLASTIC POLYCARBONATE LENS, lens_color: COLORLESS, overall_width: 2.500 INCHES NOMINAL IN, overall_height: 1.750 INCHES NOMINAL IN, overall_length: 6.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-176-4522, 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→ 391
NSN: 4720-00-176-4522
NIINs: 001764522, 001920489, 002239080, 002376595, 002384238, 005354701, 006565062, 006869533, 008090350, 009132038, 009825255, 010877328, 011172601, 011406343, 012074297, 012152045, 012460308, 013138975, 013999190
FSC: 4720 — Hose and Flexible Tubing
CAGE: 60837 — APOLLO AUDIO-VISUAL (USA)
SPECIFICATIONS
shapeRECTANGULAR
materialPLASTIC POLYCARBONATE LENS
lens_colorCOLORLESS
overall_width2.500 INCHES NOMINAL IN
overall_height1.750 INCHES NOMINAL IN
overall_length6.125 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
special_featuresCOMFORT GRIP HANDLES
tip_angle_in_deg0.0
lens_transparencyTRANSPARENT
lens_surface_conditionSMOOTH FACE
lens_type_and_quantity1 FLAT, RECTANGULAR W/HOLES
NSN4720-00-176-4522
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 391 · Thule ⚠ 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
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
SUBSTITUTES & CROSS-REFERENCES 1
SMB635885Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 391?
391 is a ADAPTER,RADIO FREQUENCY CABLE manufactured by Thule. It is classified as a MRO (MRO_GENERAL).
What parts can replace 391?
There is 1 known substitute for 391: SMB635885. Substitute compatibility should be verified for your specific system.
What is the NSN for 391?
391 is cataloged in the U.S. Government catalog under NSN 4720-00-176-4522. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.