PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

123A812-1Delay Line

Lockheed Martin Corporation Div Rotary and Mission Systems · NSN 5999-01-361-8373 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-361-8373 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-361-8373. Primary manufacturer part number: 123A812-1.
Features
  • Delay Line — FSC 5999
  • Mounting Facility: PIN(S)
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
  • Delay Time Variation Method: TAPPED
  • Mounting Facility Quantity: 16
  • Body Style: RECTANGULAR
  • Segment Delay Time: 4.000 NANOSECONDS MINIMUM SINGLE SECTION ALL SEGMENTS AND 6.000 NANOSECONDS MAXIMUM SINGLE SECTION ALL SEGMENTS NS
  • Section Delay Time: 23.750 NANOSECONDS MINIMUM SINGLE SECTION AND 26.250 NANOSECONDS MAXIMUM SINGLE SECTION NS
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line, cataloged under National Stock Number 5999-01-361-8373, 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 Lockheed Martin Corporation Div Rotary and Mission Systems. 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-361-8373
Primary Part Number123A812-1
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rotary and Mission Systems
StatusACTIVE
Mounting FacilityPIN(S)
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Delay Time Variation MethodTAPPED
Mounting Facility Quantity16
Body StyleRECTANGULAR
Segment Delay Time4.000 NANOSECONDS MINIMUM SINGLE SECTION ALL SEGMENTS AND 6.000 NANOSECONDS MAXIMUM SINGLE SECTION ALL SEGMENTS NS
Section Delay Time23.750 NANOSECONDS MINIMUM SINGLE SECTION AND 26.250 NANOSECONDS MAXIMUM SINGLE SECTION NS
Terminal Type and Quantity16 PIN
Body Length0.820 INCHES MAXIMUM IN
Signal Delay MethodLUMPED CONSTANT
Body Depth0.320 INCHES MAXIMUM IN
Segment Quantity Per Section5 SINGLE SECTION
Individual Section Quantity1
Pulse Rise Time Rating3.0 NANOSECONDS NS
Body Width0.400 INCHES MAXIMUM IN
Mounting FacilityPIN(S)
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Delay Time Variation MethodTAPPED
Mounting Facility Quantity16
Body StyleRECTANGULAR
Segment Delay Time4.000 NANOSECONDS MINIMUM SINGLE SECTION ALL SEGMENTS AND 6.000 NANOSECONDS MAXIMUM SINGLE SECTION ALL SEGMENTS NS
Section Delay Time23.750 NANOSECONDS MINIMUM SINGLE SECTION AND 26.250 NANOSECONDS MAXIMUM SINGLE SECTION NS
Terminal Type and Quantity16 PIN
Body Length0.820 INCHES MAXIMUM IN
Signal Delay MethodLUMPED CONSTANT
Body Depth0.320 INCHES MAXIMUM IN
Segment Quantity Per Section5 SINGLE SECTION
Individual Section Quantity1
Pulse Rise Time Rating3.0 NANOSECONDS NS
Body Width0.400 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 11
5998-01-369-70529332 SUCCESSOR
Circuit Card Assembly
Mid-Continent Instrument Co Inc
2910-00-172-49329332 INTERCHANGEABLE
Housing,injector
Cummins Inc.
2530-00-191-7492F35394 INTERCHANGEABLE
Push Rod,hydraulic Brake Master
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5950-00-445-8796 INTERCHANGEABLE
Saturable Reactor
5995-01-043-72249332 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Electro Scientific Industries Inc
2040-01-107-0575903 DP2 CHR INTERCHANGEABLE
Anchor Chock
Perko Inc
5110-01-131-7095PL-46C INTERCHANGEABLE
Pliers,diagonal Cutting
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5985-01-181-9762DM CNI 22-1 INTERCHANGEABLE
Antenna
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
5310-01-285-012793-32 INTERCHANGEABLE
Washer,lock
Elbit Systems C4i and Cyber Ltd Div C4i and Cyber
4240-01-481-9236 INTERCHANGEABLE
Mask,air Filtering
Cross-Reference Index
Part NumberManufacturer
123A812-1 PRIMARY Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
L-82-805 Jbm Electronics Inc (USA)
93-32 Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil (USA)
Related Parts
5998-01-369-7052SUCCESSOR
CIRCUIT CARD ASSEMBLY
9332
2910-00-172-4932INTERCHANGEABLE
HOUSING,INJECTOR
9332
2530-00-191-7492INTERCHANGEABLE
PUSH ROD,HYDRAULIC BRAKE MASTER
F35394
5950-00-445-8796INTERCHANGEABLE
SATURABLE REACTOR
5995-01-043-7224INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
9332
2040-01-107-0575INTERCHANGEABLE
ANCHOR CHOCK
903 DP2 CHR
5110-01-131-7095INTERCHANGEABLE
PLIERS,DIAGONAL CUTTING
PL-46C
5985-01-181-9762INTERCHANGEABLE
ANTENNA
DM CNI 22-1
5310-01-285-0127INTERCHANGEABLE
WASHER,LOCK
93-32
4240-01-481-9236INTERCHANGEABLE
MASK,AIR FILTERING
4030-01-713-4992INTERCHANGEABLE
SHACKLE
93-32

Frequently Asked Questions

What is NSN 5999-01-361-8373?

NSN 5999-01-361-8373 is a Delay Line, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-361-8373?

NSN 5999-01-361-8373 has 3 cross-referenced part numbers: 123A812-1 (Lockheed Martin Corporation Div Rotary and Mission Systems), L-82-805 (Jbm Electronics Inc), 93-32 (Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil).

What NSN replaces 5999-01-361-8373?

There are 11 known substitutes for 5999-01-361-8373: 5998-01-369-7052, 2910-00-172-4932, 2530-00-191-7492 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 123A812-1?

Key specifications for 123A812-1: Mounting Facility: PIN(S); Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC; Delay Time Variation Method: TAPPED; Mounting Facility Quantity: 16. 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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