PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS561C8-44Pin,spring

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5315-00-058-9817 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-058-9817 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-058-9817. Primary manufacturer part number: NAS561C8-44.
Features
  • Pin,spring — FSC 5315
  • Diameter: 0.250 INCHES NOMINAL IN
  • Material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND B COMPOSITION
  • Material Thickness: 0.048 INCHES NOMINAL IN
  • Style Designator: SLOTTED
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Hardness Rating: 43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 302 or Steel Comp 303 or Steel Comp 303SE Overall construction
General Description

The Pin,spring, cataloged under National Stock Number 5315-00-058-9817, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5315-00-058-9817
Primary Part NumberNAS561C8-44
Item NamePin,spring
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Diameter0.250 INCHES NOMINAL IN
MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL
Nondefinitive Spec/std Data1 TYPE AND B COMPOSITION
Material Thickness0.048 INCHES NOMINAL IN
Style DesignatorSLOTTED
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hardness Rating43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
Surface TreatmentPASSIVATE OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4140-00-358-531226597 INTERCHANGEABLE
Housing,centrifugal Fan
Regal-Beloit Corporation Dba Fasco Group Div Cassville Division
2910-00-999-322826597 INTERCHANGEABLE
Choke Assembly,carburetor
Camdec Corp
6625-01-115-409126597 INTERCHANGEABLE
Voltmeter
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
1005-01-567-731526597 INTERCHANGEABLE
Base,rear Sight
Charles Reed Knight Jr Dba Knight's Armament Company
6515-01-598-8290905-00017 INTERCHANGEABLE
Blood-Fluid Warmer System
Belmont Instrument Llc
Cross-Reference Index
Part NumberManufacturer
26597 Dresser, Llc (USA)
79-048-250-2750 Harvard Industries Inc (USA)
MS171665 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
NAS561C8-44 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MILP10971 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
856838-00 Defense Reduction Agency (USA)
MIL-P-10971 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS171665 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
26597 Dresser Industries Inc Waukesha Engine Div (USA)
Related Parts
4140-00-358-5312INTERCHANGEABLE
HOUSING,CENTRIFUGAL FAN
26597
2910-00-999-3228INTERCHANGEABLE
CHOKE ASSEMBLY,CARBURETOR
26597
6625-01-115-4091INTERCHANGEABLE
VOLTMETER
26597
1005-01-567-7315INTERCHANGEABLE
BASE,REAR SIGHT
26597
6515-01-598-8290INTERCHANGEABLE
BLOOD-FLUID WARMER SYSTEM
905-00017

Frequently Asked Questions

What is NSN 5315-00-058-9817?

NSN 5315-00-058-9817 is a Pin,spring, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5315 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5315-00-058-9817?

NSN 5315-00-058-9817 has 9 cross-referenced part numbers: 26597 (Dresser, Llc), 79-048-250-2750 (Harvard Industries Inc), MS171665 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), NAS561C8-44 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MILP10971 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 5315-00-058-9817?

There are 5 known substitutes for 5315-00-058-9817: 4140-00-358-5312, 2910-00-999-3228, 6625-01-115-4091 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS561C8-44?

Key specifications for NAS561C8-44: Diameter: 0.250 INCHES NOMINAL IN; Overall Length: 2.750 INCHES NOMINAL IN; Material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL; Nondefinitive Spec/std Data: 1 TYPE AND B COMPOSITION. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5315-00-058-9817 still in active supply?

NSN 5315-00-058-9817 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com