PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BN316-1200Waveguide Assembly

Frontgrade Technologies Inc. · NSN 5985-00-270-3142 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-270-3142 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-270-3142. Primary manufacturer part number: BN316-1200.
Features
  • Waveguide Assembly — FSC 5985
  • Flange Style: COVER TYPE SECOND FLANGE
  • Style Designator: STRAIGHT TYPE
  • Flexibility: FLEXIBLE SINGLE TUBING SEGMENT
  • Waveguide Inside Height: 0.400 INCHES NOMINAL IN
  • Precious Material and Location: FLANGE AND TUBING INSIDE SURFACE SILVER
  • Surface Treatment: SILVER ALL FLANGE INSIDE SURFACES
  • Waveguide Length: 1.000 FEET NOMINAL FT
Applications
  • Applications requiring Copper Alloy All Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-270-3142, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Frontgrade Technologies Inc.. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-270-3142
Primary Part NumberBN316-1200
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerFrontgrade Technologies Inc.
StatusACTIVE
Flange StyleCOVER TYPE SECOND FLANGE
Style DesignatorSTRAIGHT TYPE
FlexibilityFLEXIBLE SINGLE TUBING SEGMENT
Waveguide Inside Height0.400 INCHES NOMINAL IN
Precious Material and LocationFLANGE AND TUBING INSIDE SURFACE SILVER
Surface TreatmentSILVER ALL FLANGE INSIDE SURFACES
Waveguide Length1.000 FEET NOMINAL FT
Precious MaterialSILVER
Waveguide Inside Width0.900 INCHES NOMINAL IN
Operating Pressure30.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS
Waveguide Outside Height0.625 INCHES NOMINAL IN
Flange Outside Width1.625 INCHES NOMINAL SECOND FLANGE IN
Flange Connecting Facility and Quantity4 UNTHREADED HOLE(S) SECOND FLANGE SINGLE CONNECTION FACILITY
Flange StyleCHOKE TYPE FIRST FLANGE
Flange Outside Width1.625 INCHES NOMINAL FIRST FLANGE IN
MaterialCOPPER ALLOY ALL FLANGE
Flange Outside Height1.625 INCHES NOMINAL FIRST FLANGE IN
Flange Quantity2
Voltage Standing Wave Ratio1.10
Flange Depth0.438 INCHES NOMINAL FIRST FLANGE IN
Flange Inside Width1.003 INCHES NOMINAL SECOND FLANGE IN
Flange Connecting Hole Diameter0.169 INCHES NOMINAL SECOND FLANGE SINGLE CONNECTION FACILITY IN
Waveguide Outside Width1.125 INCHES NOMINAL IN
Surface TreatmentSILVER SINGLE TUBING SEGMENT INSIDE SURFACES
MaterialRUBBER SINGLE TUBING JACKET
MaterialCOPPER ALLOY SINGLE TUBING SEGMENT
Nominal Thread Size0.164 INCHES FIRST FLANGE SINGLE CONNECTION FACILITY IN
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Flange Depth0.438 INCHES NOMINAL SECOND FLANGE IN
Flange Inside Height0.400 INCHES NOMINAL FIRST FLANGE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5355-00-004-5255100438 INTERCHANGEABLE
Knob
Logimetrics Inc
5905-01-128-6039350-4055-020 INTERCHANGEABLE
Resistor Network,fixed,film
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6515-01-599-4150100380 INTERCHANGEABLE
Nail,bone
Sign Fracture Care International Dba Sign
3120-01-602-5478100380 INTERCHANGEABLE
Bushing,shoulder
Air Logistics Corporation Dba Air Logistics Corp
Cross-Reference Index
Part NumberManufacturer
BN316-1200 Litton Systems Inc Airtron Div (USA)
100380 Microtech Inc Dba Microtech Inc (USA)
BN316-1200 PRIMARY Frontgrade Technologies Inc. (USA)
Related Parts
5355-00-004-5255INTERCHANGEABLE
KNOB
100438
5905-01-128-6039INTERCHANGEABLE
RESISTOR NETWORK,FIXED,FILM
350-4055-020
6515-01-599-4150INTERCHANGEABLE
NAIL,BONE
100380
3120-01-602-5478INTERCHANGEABLE
BUSHING,SHOULDER
100380

Frequently Asked Questions

What is NSN 5985-00-270-3142?

NSN 5985-00-270-3142 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-270-3142?

NSN 5985-00-270-3142 has 3 cross-referenced part numbers: BN316-1200 (Litton Systems Inc Airtron Div), 100380 (Microtech Inc Dba Microtech Inc), BN316-1200 (Frontgrade Technologies Inc.).

What NSN replaces 5985-00-270-3142?

There are 4 known substitutes for 5985-00-270-3142: 5355-00-004-5255, 5905-01-128-6039, 6515-01-599-4150 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BN316-1200?

Key specifications for BN316-1200: Flange Style: COVER TYPE SECOND FLANGE; Style Designator: STRAIGHT TYPE; Flexibility: FLEXIBLE SINGLE TUBING SEGMENT; Waveguide Inside Height: 0.400 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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