NSN 5985-00-457-4243 · NIIN 004574243 · Part number X157A
Microlab/fxr Llc · FSC 5985 — Antennas, Waveguides, and Related Equipment · FSG 59 — Electrical and Electronic Equipment Components · CAGE 00929
Government record, cited
NSN 5985-00-457-4243 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-457-4243. Manufacturer of record part number: X157A.
Also searched as5985-00-457-4243 ·
5985004574243 ·
NIIN 004574243 ·
00-457-4243 ·
FSC 5985 Antennas, Waveguides, and Related Equipment · CAGE 00929 · X157A · X-231-S · X-231-S
Nearby stock numbers← 5985-00-457-2538 Coupler, Rotary, Radio Frequency
·
5985-00-457-5299 →
Features
Isolator,radio Frequency Reflect — FSC 5985
FSC Application Data: WAVEGUIDE
Flange Quantity: 2
Flange Type: COVER
Flange Connecting Hole Diameter: 0.156 INCHES NOMINAL IN
Frequency Range Rating: +8.2 TO 12.4 GIGAHERTZ
Flange Connecting Hole Spacing: SPACED ON 1.219 IN. BY 1.281 IN. MTG CTRS IN
Flange Connection Facility Quantity: 4
Identification
NSN: 5985-00-457-4243
NIIN: 004574243
FSC: 5985 — Antennas, Waveguides, and Related Equipment
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: X157A
Manufacturer: Microlab/fxr Llc
General Description
The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-00-457-4243, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microlab/fxr Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5985-00-457-4243
Primary Part Number
X157A
Item Name
Isolator,radio Frequency Reflect
FSC / FSG
5985 / 59 — Antennas, Waveguides, and Related Equipment
Manufacturer
Microlab/fxr Llc
Status
ACTIVE
FSC Application Data
WAVEGUIDE
Flange Quantity
2
Flange Type
COVER
Flange Connecting Hole Diameter
0.156 INCHES NOMINAL IN
Frequency Range Rating
+8.2 TO 12.4 GIGAHERTZ
Flange Connecting Hole Spacing
SPACED ON 1.219 IN. BY 1.281 IN. MTG CTRS IN
Flange Connection Facility Quantity
4
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL D — Destroy Item
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Gould Inc Defense Systems Navcom Systems Div 3dbm Opns
No interchangeability data on file.
Other items in FSC 5985 — Antennas, Waveguides, and Related Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5985-00-001-1854
ANTENNA
5985-00-001-1862
WAVEGUIDE ASSEMBLY
5985-00-001-1869
WAVEGUIDE ASSEMBLY
5985-00-001-1870
WAVEGUIDE ASSEMBLY
5985-00-001-1871
WAVEGUIDE ASSEMBLY
5985-00-001-1874
WAVEGUIDE ASSEMBLY
5985-00-001-1875
ADAPTER,WAVEGUIDE
5985-00-001-1876
WAVEGUIDE ASSEMBLY
Frequently Asked Questions
What is NSN 5985-00-457-4243?
NSN 5985-00-457-4243 is a Isolator,radio Frequency Reflect, manufactured by Microlab/fxr Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
What part numbers are listed for NSN 5985-00-457-4243?
NSN 5985-00-457-4243 has 2 manufacturer part numbers on file: X-231-S (Wv Communications Inc), X157A (Microlab/fxr Llc).
What are the specifications of X157A?
Key specifications for X157A: Overall Height: 2.125 INCHES NOMINAL IN; FSC Application Data: WAVEGUIDE; Flange Quantity: 2; Flange Type: COVER. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5985-00-457-4243 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 5985-00-457-4243?
NSN 5985-00-457-4243 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.