PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2557873-4Delay Line

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5999-00-938-8615 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-938-8615 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-938-8615. Primary manufacturer part number: 2557873-4.
Features
  • Delay Line — FSC 5999
  • Adjustment Device Quantity: 1
  • Voltage Rating: 20.000 VOLTS MAXIMUM
  • Input Impedance Rating: 500.000 OHMS
  • Body Length: 3.255 INCHES MAXIMUM IN
  • Operating Temp Range: +0.0 TO 60.0 CELSIUS DEGC
  • Adjustment Device Drive Type: SLOTTED SCREW
  • Delay Time Variation Method: VARIABLE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line, cataloged under National Stock Number 5999-00-938-8615, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 29 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-938-8615
Primary Part Number2557873-4
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Adjustment Device Quantity1
Voltage Rating20.000 VOLTS MAXIMUM
Input Impedance Rating500.000 OHMS
Body Length3.255 INCHES MAXIMUM IN
Operating Temp Range+0.0 TO 60.0 CELSIUS DEGC
Adjustment Device Drive TypeSLOTTED SCREW
Delay Time Variation MethodVARIABLE
Pulse Rise Time Rating150.0 NANOSECONDS NS
Delay Time Variation Per Deg Celsius0.417 NANOSECONDS NS
Signal Delay MethodLUMPED CONSTANT
Thread Size and Series/type Designator0.138-32 UNIFIED NATIONAL COARSE (UNC)
Mounting Provision Arrangement StyleFOUR POSITION RECTANGULAR
Mounting FacilityTHREADED HOLE(S)
Body Depth0.460 INCHES MAXIMUM IN
Section Delay Time333.500 MICROSECONDS MINIMUM SINGLE SECTION US
Section Delay Time337.500 MICROSECONDS MAXIMUM SINGLE SECTION US
Terminal Type and Quantity5 PIN
Thread Pitch Diameters+0.1875 TO 0.1876 INCHES IN
Output Impedance Rating1.500 KILOHMS
Mounting Facility Quantity4
Body StyleRECTANGULAR
Individual Section Quantity1
Thread Class2B
Body Width3.942 INCHES MAXIMUM IN
Frequency Rating16.500 KILOHERTZ MAXIMUM
Longest Vertical Distance Between Mounting Centers2.500 INCHES NOMINAL IN
Longest Horizontal Distance Between Mounting Centers2.700 INCHES NOMINAL IN
Adjustment Device Quantity1
Voltage Rating20.000 VOLTS MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Weight0.0300 lbs
Cube0.0318 cu ft
Verified Substitutes 12
3110-00-100-31309185 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
4820-00-103-567010034 INTERCHANGEABLE
Valve,pneumatic Tank
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
3110-00-151-5104H936340H936310 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
5133-00-189-9324 INTERCHANGEABLE
Drill,twist
5305-00-206-2224 INTERCHANGEABLE
Screw,cap,socket Head
3455-00-277-3561 INTERCHANGEABLE
Blade,band Saw,metal Cutting
1630-00-393-954310034 INTERCHANGEABLE
Line Assembly,brake
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5999-00-753-675613041847-1 INTERCHANGEABLE
Mounting Pad,electrical-Electron
Us Army Aviation and Missile Command
3110-00-827-8646 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5133-00-833-463510034 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
Cross-Reference Index
Part NumberManufacturer
2557873-4REVC Naval Sea Systems Command (USA)
2557873-4 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
1003-4 Computer Devices Corp (USA)
Related Parts
3110-00-100-3130INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
9185
4820-00-103-5670INTERCHANGEABLE
VALVE,PNEUMATIC TANK
10034
3110-00-151-5104INTERCHANGEABLE
BEARING,ROLLER,TAPERED
H936340H936310
5133-00-189-9324INTERCHANGEABLE
DRILL,TWIST
5305-00-206-2224INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
3455-00-277-3561INTERCHANGEABLE
BLADE,BAND SAW,METAL CUTTING
1630-00-393-9543INTERCHANGEABLE
LINE ASSEMBLY,BRAKE
10034
5999-00-753-6756INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
13041847-1
3110-00-827-8646INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5133-00-833-4635INTERCHANGEABLE
DRILL,TWIST
10034
4730-00-939-6234INTERCHANGEABLE
CLAMP,HOSE
20016H
3040-01-181-0772INTERCHANGEABLE
SHAFT,STRAIGHT
10034

Frequently Asked Questions

What is NSN 5999-00-938-8615?

NSN 5999-00-938-8615 is a Delay Line, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-938-8615?

NSN 5999-00-938-8615 has 3 cross-referenced part numbers: 2557873-4REVC (Naval Sea Systems Command), 2557873-4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 1003-4 (Computer Devices Corp).

What NSN replaces 5999-00-938-8615?

There are 12 known substitutes for 5999-00-938-8615: 3110-00-100-3130, 4820-00-103-5670, 3110-00-151-5104 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2557873-4?

Key specifications for 2557873-4: Adjustment Device Quantity: 1; Voltage Rating: 20.000 VOLTS MAXIMUM; Input Impedance Rating: 500.000 OHMS; Body Length: 3.255 INCHES MAXIMUM 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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