PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61-85Delay Line

Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil · NSN 5999-00-938-2237 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-938-2237 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-938-2237. Primary manufacturer part number: 61-85.
Features
  • Delay Line — FSC 5999
  • Longest Horizontal Distance Between Mounting Centers: 3.734 INCHES MINIMUM AND 3.766 INCHES MAXIMUM IN
  • Body Width: 2.969 INCHES MINIMUM AND 3.031 INCHES MAXIMUM IN
  • Longest Vertical Distance Between Mounting Centers: 2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM IN
  • Delay Time Variation Method: TAPPED
  • Mounting Facility: THREADED HOLE(S)
  • Surface Treatment: PRIMER ZINC CHROMATE BODY
  • Signal Delay Method: LUMPED CONSTANT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line, cataloged under National Stock Number 5999-00-938-2237, 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 Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil. Government technical data includes 29 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-938-2237
Primary Part Number61-85
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEsc Control Electronics Llc Dba Control Electronics Division of Fil-Coil
StatusACTIVE
Longest Horizontal Distance Between Mounting Centers3.734 INCHES MINIMUM AND 3.766 INCHES MAXIMUM IN
Body Width2.969 INCHES MINIMUM AND 3.031 INCHES MAXIMUM IN
Longest Vertical Distance Between Mounting Centers2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM IN
Delay Time Variation MethodTAPPED
Mounting FacilityTHREADED HOLE(S)
Surface TreatmentPRIMER ZINC CHROMATE BODY
Signal Delay MethodLUMPED CONSTANT
Protective Coating MethodPAINT BODY
Output Impedance Rating750.000 OHMS
Mounting Provision Arrangement StyleFOUR POSITION RECTANGULAR
Section Delay Time334.900 MICROSECONDS NOMINAL SINGLE SECTION US
Thread Size and Series/type Designator0.164-32 UNIFIED NATIONAL COARSE (UNC)
Segment Quantity Per Section33 SINGLE SECTION
Input Impedance Rating1.500 KILOHMS
Frequency Bandwidth3.000 KILOHERTZ NOMINAL
Terminal Type and Quantity36 WIRE HOOK
Surface Treatment Document and ClassificationJAN-P-735 FSCM 81349 MIL SPEC SINGLE TREATMENT RESPONSE BODY
Body Depth2.594 INCHES MINIMUM AND 2.656 INCHES MAXIMUM IN
Unable to DecodeUNABLE TO DECODE
Individual Section Quantity1
Body Length4.094 INCHES MINIMUM AND 4.156 INCHES MAXIMUM IN
Thread Class2B
Body StyleRECTANGULAR
Thread Pitch Diameters+0.1257 TO 0.1437 INCHES IN
Mounting Facility Quantity4
Operating Temp Range-5.0 TO 75.0 CELSIUS DEGC
Frequency Rating3.000 KILOHERTZ MINIMUM AND 6.000 KILOHERTZ MAXIMUM
Voltage Rating10.000 VOLTS MAXIMUM
Thread Size and Series/type Designator0.164-32 UNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Verified Substitutes 11
6625-00-604-26377688-1 SUCCESSOR
Voltmeter
Kurz & Root Generator Company, Llc
3110-00-142-4285 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-156-3467102668-22 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5935-01-013-71771160002P2 INTERCHANGEABLE
Connector,receptacle,electrical
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
6680-01-141-75036185-3 INTERCHANGEABLE
Meter,flow Rate Indicating
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
6680-01-145-2475RMB53PF INTERCHANGEABLE
Meter,flow Rate Indicating
Dwyer Instruments Inc
5315-01-305-59886185 INTERCHANGEABLE
Pin,straight,headless
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5307-01-316-298612342133 INTERCHANGEABLE
Stud,locked in
U S Army Tank Automotive Command Amsta-Im-Mm
4520-01-610-6169 INTERCHANGEABLE
Heater,water,gas
6640-01-622-39516185 INTERCHANGEABLE
Block,insect Fixation
Bioquip Products, Inc.
Cross-Reference Index
Part NumberManufacturer
338592 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
61-85 PRIMARY Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil (USA)
Related Parts
6625-00-604-2637SUCCESSOR
VOLTMETER
7688-1
3110-00-142-4285INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-156-3467INTERCHANGEABLE
BEARING,BALL,ANNULAR
102668-22
5935-01-013-7177INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
1160002P2
6680-01-141-7503INTERCHANGEABLE
METER,FLOW RATE INDICATING
6185-3
6680-01-145-2475INTERCHANGEABLE
METER,FLOW RATE INDICATING
RMB53PF
5315-01-305-5988INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
6185
5307-01-316-2986INTERCHANGEABLE
STUD,LOCKED IN
12342133
4520-01-610-6169INTERCHANGEABLE
HEATER,WATER,GAS
6640-01-622-3951INTERCHANGEABLE
BLOCK,INSECT FIXATION
6185
5305-01-665-7741INTERCHANGEABLE
SETSCREW
6185

Frequently Asked Questions

What is NSN 5999-00-938-2237?

NSN 5999-00-938-2237 is a Delay Line, manufactured by Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-938-2237?

NSN 5999-00-938-2237 has 2 cross-referenced part numbers: 338592 (Lockheed Martin Corporation Div Rms - Mitchel Field), 61-85 (Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil).

What NSN replaces 5999-00-938-2237?

There are 11 known substitutes for 5999-00-938-2237: 6625-00-604-2637, 3110-00-142-4285, 3110-00-156-3467 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 61-85?

Key specifications for 61-85: Longest Horizontal Distance Between Mounting Centers: 3.734 INCHES MINIMUM AND 3.766 INCHES MAXIMUM IN; Body Width: 2.969 INCHES MINIMUM AND 3.031 INCHES MAXIMUM IN; Longest Vertical Distance Between Mounting Centers: 2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM IN; Delay Time Variation Method: TAPPED. 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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