The Waveguide Assembly, cataloged under National Stock Number 5985-01-354-9907, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-354-9907 |
| Primary Part Number | 1310AS5157 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Flange Inside Height | 0.392 INCHES MINIMUM AND 0.396 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Voltage Standing Wave Ratio | 1.05 |
| Bend Angle in Deg | 45.0 ALL BENDS E-PLANE |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 0.812 INCHES NOMINAL IN |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Flange Outside Height | 1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Inside Width | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM SINGLE FLANGE IN |
| Thread Direction | RIGHT-HAND SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Nominal Thread Size | 0.138 INCHES SINGLE FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Depth | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Outside Width | 1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM SINGLE FLANGE IN |
| Insertion Loss in Decibels | 0.113 |
| Thread Class | 2B SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Material | ALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Flange Style | CHOKE TYPE SINGLE FLANGE |
| Waveguide Longer Offset Distance | 1.444 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1310AS5157 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 1310AS5157 | Naval Air Warfare Center Aircraft Div (USA) |
NSN 5985-01-354-9907 is a Waveguide Assembly, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-354-9907 has 2 manufacturer part numbers on file: 1310AS5157 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 1310AS5157 (Naval Air Warfare Center Aircraft Div).
Key specifications for 1310AS5157: Flange Inside Height: 0.392 INCHES MINIMUM AND 0.396 INCHES MAXIMUM SINGLE FLANGE IN; Flange Quantity: 1; Voltage Standing Wave Ratio: 1.05; Bend Angle in Deg: 45.0 ALL BENDS E-PLANE. 20 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-01-354-9907 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.