PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9987612Delay Line

Us Army Aviation and Missile Command · NSN 5999-00-899-0805 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-899-0805 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-899-0805. Primary manufacturer part number: 9987612.
Features
  • Delay Line — FSC 5999
  • Material: ALUMINUM ALLOY OVERALL
  • Surface Treatment: ENAMEL BODY
  • FSC Application Data: RADAR SET,GUIDED MISSILE
  • Terminal Type and Quantity: 2 WIRE HOOK AND 2 COAXIAL RECEPTACLE
  • Attenuation in Decibels: 55.000
  • Output Impedance Rating: 100.000 OHMS
  • Signal Delay Method: INDUCTANCE
Applications
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Delay Line, cataloged under National Stock Number 5999-00-899-0805, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5999-00-899-0805
Primary Part Number9987612
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusACTIVE
MaterialALUMINUM ALLOY OVERALL
Surface TreatmentENAMEL BODY
FSC Application DataRADAR SET,GUIDED MISSILE
Terminal Type and Quantity2 WIRE HOOK AND 2 COAXIAL RECEPTACLE
Attenuation in Decibels55.000
Output Impedance Rating100.000 OHMS
Signal Delay MethodINDUCTANCE
Input Impedance Rating100.000 OHMS
Body Depth4.000 INCHES NOMINAL IN
Mounting FacilityUNTHREADED HOLE(S)
Body Width1.500 INCHES NOMINAL IN
Operating Temp Range-29.0 TO 52.0 CELSIUS DEGC
Mounting Provision Arrangement StyleFOUR POSITION RECTANGULAR
Body StyleRECTANGULAR, BRACKETED
Section Delay Time35.300 MICROSECONDS NOMINAL SINGLE SECTION US
Body Length3.140 INCHES NOMINAL IN
Hole Diameter0.178 INCHES NOMINAL IN
Frequency Rating30.000 MEGAHERTZ NOMINAL
Longest Vertical Distance Between Mounting Centers3.620 INCHES NOMINAL IN
Mounting Facility Quantity4
Longest Horizontal Distance Between Mounting Centers3.500 INCHES NOMINAL IN
Individual Section Quantity1
Mounting Facility Quantity4
MaterialALUMINUM ALLOY OVERALL
Surface TreatmentENAMEL BODY
FSC Application DataRADAR SET,GUIDED MISSILE
Terminal Type and Quantity2 WIRE HOOK AND 2 COAXIAL RECEPTACLE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6145-01-288-9237 (9320)
HAZMATNo
Verified Substitutes 11
6145-01-288-92379320 SUCCESSOR
Cable,special Purpose,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
7025-01-357-31969320 SUCCESSOR
Console,tape Switch Control
Televideo, Inc.
3110-00-100-0508160757 INTERCHANGEABLE
Cup,tapered Roller Bearing
Brinkley Technology Group Llc Dba Hercules Manufacturing
5950-00-325-6110 INTERCHANGEABLE
Coil,radio Frequency
4320-00-420-2846 INTERCHANGEABLE
Shaft,pump
4910-00-779-7103 INTERCHANGEABLE
Gage,dial,valve Sea
2990-00-913-1939T-9320N INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
5940-01-071-7285 INTERCHANGEABLE
Shield,binding Post
7025-01-090-2567BK5A5A INTERCHANGEABLE
Disk Drive Unit
General Dynamics Information Systems Inc Gdis Div
4240-01-532-6481 INTERCHANGEABLE
Respirator,air Filtering
Cross-Reference Index
Part NumberManufacturer
9987612 Us Army Aviation and Missile Command (USA)
9320 St Olektron Corp (USA)
Related Parts
SUCCESSOR 6145-01-288-9237 Cable,special Purpose,electrical · 9320
7025-01-357-3196SUCCESSOR
CONSOLE,TAPE SWITCH CONTROL
9320
3110-00-100-0508INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
160757
5950-00-325-6110INTERCHANGEABLE
COIL,RADIO FREQUENCY
4320-00-420-2846INTERCHANGEABLE
SHAFT,PUMP
4910-00-779-7103INTERCHANGEABLE
GAGE,DIAL,VALVE SEA
2990-00-913-1939INTERCHANGEABLE
MUFFLER,EXHAUST
T-9320N
5940-01-071-7285INTERCHANGEABLE
SHIELD,BINDING POST
7025-01-090-2567INTERCHANGEABLE
DISK DRIVE UNIT
BK5A5A
4240-01-532-6481INTERCHANGEABLE
RESPIRATOR,AIR FILTERING
5120-01-681-4375INTERCHANGEABLE
JACK,HYDRAULIC,HAND

Frequently Asked Questions

What is NSN 5999-00-899-0805?

NSN 5999-00-899-0805 is a Delay Line, manufactured by Us Army Aviation and Missile Command, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-899-0805?

NSN 5999-00-899-0805 has 2 cross-referenced part numbers: 9987612 (Us Army Aviation and Missile Command), 9320 (St Olektron Corp).

What NSN replaces 5999-00-899-0805?

There are 11 known substitutes for 5999-00-899-0805: 6145-01-288-9237, 7025-01-357-3196, 3110-00-100-0508 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9987612?

Key specifications for 9987612: Special Features: FURNISHED WITH INTERNAL HEATER; Material: ALUMINUM ALLOY OVERALL; Surface Treatment: ENAMEL BODY; FSC Application Data: RADAR SET,GUIDED MISSILE. 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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